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How to write an expository essay

How to Write an Expository Essay | Structure, Tips & Examples

Published on July 14, 2020 by Jack Caulfield . Revised on July 23, 2023.

“Expository” means “intended to explain or describe something.” An expository essay provides a clear, focused explanation of a particular topic, process, or set of ideas. It doesn’t set out to prove a point, just to give a balanced view of its subject matter.

Expository essays are usually short assignments intended to test your composition skills or your understanding of a subject. They tend to involve less research and original arguments than argumentative essays .

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When should you write an expository essay, how to approach an expository essay, introducing your essay, writing the body paragraphs, concluding your essay, other interesting articles, frequently asked questions about expository essays.

In school and university, you might have to write expository essays as in-class exercises, exam questions, or coursework assignments.

Sometimes it won’t be directly stated that the assignment is an expository essay, but there are certain keywords that imply expository writing is required. Consider the prompts below.

The word “explain” here is the clue: An essay responding to this prompt should provide an explanation of this historical process—not necessarily an original argument about it.

Sometimes you’ll be asked to define a particular term or concept. This means more than just copying down the dictionary definition; you’ll be expected to explore different ideas surrounding the term, as this prompt emphasizes.

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An expository essay should take an objective approach: It isn’t about your personal opinions or experiences. Instead, your goal is to provide an informative and balanced explanation of your topic. Avoid using the first or second person (“I” or “you”).

The structure of your expository essay will vary according to the scope of your assignment and the demands of your topic. It’s worthwhile to plan out your structure before you start, using an essay outline .

A common structure for a short expository essay consists of five paragraphs: An introduction, three body paragraphs, and a conclusion.

Like all essays, an expository essay begins with an introduction . This serves to hook the reader’s interest, briefly introduce your topic, and provide a thesis statement summarizing what you’re going to say about it.

Hover over different parts of the example below to see how a typical introduction works.

In many ways, the invention of the printing press marked the end of the Middle Ages. The medieval period in Europe is often remembered as a time of intellectual and political stagnation. Prior to the Renaissance, the average person had very limited access to books and was unlikely to be literate. The invention of the printing press in the 15th century allowed for much less restricted circulation of information in Europe, paving the way for the Reformation.

The body of your essay is where you cover your topic in depth. It often consists of three paragraphs, but may be more for a longer essay. This is where you present the details of the process, idea or topic you’re explaining.

It’s important to make sure each paragraph covers its own clearly defined topic, introduced with a topic sentence . Different topics (all related to the overall subject matter of the essay) should be presented in a logical order, with clear transitions between paragraphs.

Hover over different parts of the example paragraph below to see how a body paragraph is constructed.

The invention of the printing press in 1440 changed this situation dramatically. Johannes Gutenberg, who had worked as a goldsmith, used his knowledge of metals in the design of the press. He made his type from an alloy of lead, tin, and antimony, whose durability allowed for the reliable production of high-quality books. This new technology allowed texts to be reproduced and disseminated on a much larger scale than was previously possible. The Gutenberg Bible appeared in the 1450s, and a large number of printing presses sprang up across the continent in the following decades. Gutenberg’s invention rapidly transformed cultural production in Europe; among other things, it would lead to the Protestant Reformation.

The conclusion of an expository essay serves to summarize the topic under discussion. It should not present any new information or evidence, but should instead focus on reinforcing the points made so far. Essentially, your conclusion is there to round off the essay in an engaging way.

Hover over different parts of the example below to see how a conclusion works.

The invention of the printing press was important not only in terms of its immediate cultural and economic effects, but also in terms of its major impact on politics and religion across Europe. In the century following the invention of the printing press, the relatively stationary intellectual atmosphere of the Middle Ages gave way to the social upheavals of the Reformation and the Renaissance. A single technological innovation had contributed to the total reshaping of the continent.

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An expository essay is a broad form that varies in length according to the scope of the assignment.

Expository essays are often assigned as a writing exercise or as part of an exam, in which case a five-paragraph essay of around 800 words may be appropriate.

You’ll usually be given guidelines regarding length; if you’re not sure, ask.

An expository essay is a common assignment in high-school and university composition classes. It might be assigned as coursework, in class, or as part of an exam.

Sometimes you might not be told explicitly to write an expository essay. Look out for prompts containing keywords like “explain” and “define.” An expository essay is usually the right response to these prompts.

An argumentative essay tends to be a longer essay involving independent research, and aims to make an original argument about a topic. Its thesis statement makes a contentious claim that must be supported in an objective, evidence-based way.

An expository essay also aims to be objective, but it doesn’t have to make an original argument. Rather, it aims to explain something (e.g., a process or idea) in a clear, concise way. Expository essays are often shorter assignments and rely less on research.

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Expository Essays

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The Modes of Discourse—Exposition, Description, Narration, Argumentation (EDNA)—are common paper assignments you may encounter in your writing classes. Although these genres have been criticized by some composition scholars, the Purdue OWL recognizes the wide spread use of these approaches and students’ need to understand and produce them.

What is an expository essay?

The expository essay is a genre of essay that requires the student to investigate an idea, evaluate evidence, expound on the idea, and set forth an argument concerning that idea in a clear and concise manner. This can be accomplished through comparison and contrast, definition, example, the analysis of cause and effect, etc.

Please note : This genre is commonly assigned as a tool for classroom evaluation and is often found in various exam formats.

The structure of the expository essay is held together by the following.

A clear, concise, and defined thesis statement that occurs in the first paragraph of the essay.

It is essential that this thesis statement be appropriately narrowed to follow the guidelines set forth in the assignment. If the student does not master this portion of the essay, it will be quite difficult to compose an effective or persuasive essay.

Clear and logical transitions between the introduction, body, and conclusion.

Transitions are the mortar that holds the foundation of the essay together. Without logical progression of thought, the reader is unable to follow the essay’s argument, and the structure will collapse.

Body paragraphs that include evidential support.

Each paragraph should be limited to the exposition of one general idea. This will allow for clarity and direction throughout the essay. What is more, such conciseness creates an ease of readability for one’s audience. It is important to note that each paragraph in the body of the essay must have some logical connection to the thesis statement in the opening paragraph.

Evidential support (whether factual, logical, statistical, or anecdotal).

Often times, students are required to write expository essays with little or no preparation; therefore, such essays do not typically allow for a great deal of statistical or factual evidence.

A bit of creativity!

Though creativity and artfulness are not always associated with essay writing, it is an art form nonetheless. Try not to get stuck on the formulaic nature of expository writing at the expense of writing something interesting. Remember, though you may not be crafting the next great novel, you are attempting to leave a lasting impression on the people evaluating your essay.

A conclusion that does not simply restate the thesis, but readdresses it in light of the evidence provided.

It is at this point of the essay that students will inevitably begin to struggle. This is the portion of the essay that will leave the most immediate impression on the mind of the reader. Therefore, it must be effective and logical. Do not introduce any new information into the conclusion; rather, synthesize and come to a conclusion concerning the information presented in the body of the essay.

A complete argument

Perhaps it is helpful to think of an essay in terms of a conversation or debate with a classmate. If I were to discuss the cause of the Great Depression and its current effect on those who lived through the tumultuous time, there would be a beginning, middle, and end to the conversation. In fact, if I were to end the exposition in the middle of my second point, questions would arise concerning the current effects on those who lived through the Depression. Therefore, the expository essay must be complete, and logically so, leaving no doubt as to its intent or argument.

The five-paragraph Essay

A common method for writing an expository essay is the five-paragraph approach. This is, however, by no means the only formula for writing such essays. If it sounds straightforward, that is because it is; in fact, the method consists of:

an introductory paragraph
three evidentiary body paragraphs
a conclusion

How to Write an Expository Essay

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Does Expository Writing Have You Confused?

Maybe you find yourself on this page because your instructor asked you to write an expository essay, and you aren't exactly sure what's expected of you—if so, you've certainly found the right place. Expository writing, or exposition, is a type of discourse used to describe, explain, define, inform, or clarify. It literally means "to expose." Exposition can be found in writing or oral discourse, but for the sake of this article, we'll stick with expository writing.

You are likely familiar with expository writing already, even if the name sounds unfamiliar. Common examples include newspaper articles, how-to manuals, and assembly instructions. Expository writing is also the most frequent type of academic writing !

Present the facts, and only the facts

If you are asked to write an expository essay, then you are essentially being asked to present the facts; there is no place for bias or opinion in expository writing. In a way, this makes writing simple—it is a matter of gathering and presenting the facts about a certain topic.

Something important to keep in mind when writing exposition is that you should not assume your readers have any knowledge of the topic; don't gloss over basic or important details, even if you think they're common knowledge.

When writing expository essays, it is best to use third person narration, although second person is acceptable in some instances, such as for instructions—or articles on expository writing.

Characteristics of expository writing

There are a few characteristics of expository writing you should remember when crafting an expository essay. The first is to keep a tight focus on the main topic, avoiding lengthy tangents, wordiness, or unrelated asides that aren’t necessary for understanding your topic.

In the same vein, be sure to pick a topic that is narrow, but not so narrow that you have a hard time writing anything about it (for example, writing about ice cream would be too broad, but writing about ice cream sold at your local grocery store between 5:00 and 5:15 pm last Saturday would be too narrow).

You must also be sure to support your topic, providing plenty of facts, details, examples, and explanations, and you must do so in an organized and logical manner. Details that can support your expository writing include:

Comparisons
Descriptive details
Definitions
Charts and graphs

Formatting an expository essay

The typical format for an expository essay in school is the traditional five-paragraph essay. This includes an introduction and a conclusion, with three paragraphs for the body of the paper. Most often, these three paragraphs are limited to one subtopic each.

This is the basic essay format, but expository writing does not need to be limited to five paragraphs. No matter how long your essay is, be sure your introduction includes your thesis statement and that the paper is based on facts rather than opinions. And, as with all good essay writing , make sure to connect your paragraphs with transitions.

Methods for writing an expository essay

There are a few different methods for writing an expository essay. These include:

Compare and contrast
Cause and effect
Problem and solution
Extended definition

Generally, you will want to pick one method for each piece of expository writing. However, you may find that you can combine a few methods. The important thing is to stay focused on your topic and stick to the facts.

Now that you have a clearer understanding of expository writing, you're ready to write your essay. One final tip: be sure to give yourself plenty of time for the writing process. After you've completed your first draft, let your paper sit for a few days—this lets you return to it with fresh eyes. If you'd like a second opinion, our essay editors are always available to help.

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Writing Tips

How to Write an Expository Essay

4-minute read

29th March 2020

An expository essay explains something. This means investigating an idea, looking at evidence, coming to a conclusion, and explaining your thinking. But how do you write a strong expository essay? Our top tips include:

Read the essay prompt carefully and using it to guide your research.
Come up with a thesis statement (i.e., a position that you’ll explain).
Plan the structure of your essay before you start writing.
Once you have a first draft, revise and proofread to make sure it is perfect.

For more advice on how this works, check out the guide below.

1. Read Your Essay Prompt

Most expository essay prompts will ask you to do one of the following:

Define and explain a concept or theory.
Compare and contrast two ideas.
Examine a problem and propose a solution.
Describe a cause and effect relationship.
Explain a step-by-step process.
Analyze a broad subject and classify examples into groups.

When you’ve been set an expository assignment, then, check the prompt or question carefully. You can use the phrasing to guide your research. You may also need to select a topic to write about. If so, try to think of something:

You already know at least something about.
You find interesting enough to research.
That fits with the instructions in the essay prompt (e.g., if you’ve been asked to contrast two things, you’ll need a topic that allows for a comparison).
That is narrow enough to discuss in one essay.

Start by brainstorming topics, then narrow it down to one or two ideas.

2. Come Up with a Thesis Statement

Once you have a topic, you’ll need to do some research and develop a thesis statement. This is the proposition or position that you’ll explain in your essay.

Your thesis statement should be something you can back up with evidence and facts, as well as something that answers the question in your essay prompt. Keep in mind, too, that an expository essay should present a balanced account of the facts available, not personal opinions. For instance, we’ve come up with thesis statements for a few example essay prompts:

When you’ve selected a thesis, make sure you’ve got evidence to back it up! This may mean doing a little more research before you start writing.

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3. Structuring an Expository Essay

The exact length and content of your essay will depend on the topic and prompt. However, most expository essays follow a similar basic structure:

Introduction – A paragraph where you introduce the essay topic and your thesis statement (i.e., the issue or idea you will explain in the essay).
Main Body – A series of short paragraphs in which you explain your thesis statement, providing evidence and arguments to support each point.
Conclusion – A final paragraph where you restate your thesis and how your evidence supports this. Try not to introduce any new information here (if it’s important, it should go in the main body).
References – If required, include a bibliography of sources you’ve used.

Before you start writing, then, create an essay outline with the structure above in mind and plan what each paragraph will say.

4. Editing and Proofreading

When you have a first draft, take a break and re-read it. Now comes the redrafting ! This is where you go back over your essay and look for areas to improve. Do you provide enough evidence? Is your argument clear? Even a few tweaks may increase your mark, so make sure to redraft at least once!

Finally, make sure to have your essay proofread before you submit it for marking. This will ensure your writing is error free and easy to read, giving you an even better chance of getting the grades you deserve.

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Expository Essay

Complete Guide to Expository Essays: Writing Help and Topics

11 min read

What is an Expository Essay?

An expository essay is a type of essay that seeks to inform, describe, or explain a particular subject or topic.

It's distinct in its approach as it emphasizes presenting facts, analyzing information, and providing a comprehensive understanding without incorporating personal opinions or biases.

Why Write an Expository Essay?

The purpose of writing an expository essay extends beyond academic requirements.

This form of writing nurtures the ability to research deeply, logically organize thoughts, and articulate information coherently.

Developing these skills not only enhances academic performance but also prepares individuals for effectively communicating complex ideas in various real-world scenarios.

Expository Essay Vs. Argumentative Essay

Expository and argumentative essays vary in their purposes and approaches.

Expository essays aim to inform or describe a topic without personal opinions, using a neutral, informative tone.

On the other hand, argumentative essays seek to persuade by presenting a clear viewpoint and supporting it with evidence.

Expository essays follow a simpler structure, providing information, while argumentative essays involve complex structures, presenting and countering arguments. Understanding these differences helps in choosing the right essay type for specific writing goals.

Types of Expository Essay

Before we dive into the different types of expository essays, let's check out five common ones:

Descriptive Essays

Descriptive essays aim to create a detailed image or sensory experience in the reader's mind by vividly describing a particular place, object, person, or event.

They use rich language and sensory details to paint a clear picture and evoke emotions, making the reader feel like they're experiencing what's being described.

Process Analysis Essays

In a process analysis essay , the writer breaks down a series of steps needed to achieve a specific task or goal.

They provide a clear, step-by-step guide, making complex tasks easy to understand. For example, they might explain how to bake a cake, fix a bicycle, or perform a scientific experiment.

Compare and Contrast Essays

Compare and contrast essays focus on exploring the similarities and differences between two or more subjects.

They present a balanced view, showing how things are alike and how they're different. Whether it's comparing different cultures, products, historical events, or ideas, these essays aim to offer insights into relationships and contrasts.

Cause and Effect Essays

Cause and effect essays delve into examining the causes that lead to specific effects or the effects that arise from certain causes.

They analyze the relationship between events, explaining why things happen and what outcomes result from those actions or occurrences. They aim to provide a clear understanding of the connections between different elements.

Problem and Solution Essays

Focused on a specific issue, problem and solution essays identify a problem, its causes, and effects, and propose solutions to address and resolve the problem.

They aim to offer practical, effective solutions to real-life issues, providing a roadmap for solving problems or improving situations.

Structure of an Expository Essay

An expository essay typically comprises three main parts: the introduction, body paragraphs, and conclusion. Here's what the general structure of an expository essay looks like:

Introduction

The introduction of an expository essay is where the writer presents the topic, provides background information, and ends with a clear thesis statement .

This section aims to grab the reader's attention and set the stage for the discussion that follows.

Body Paragraphs

The body of the essay contains a series of paragraphs that delve deeper into the topic.

Each paragraph should begin with a topic sentence that introduces the main idea or argument.

These paragraphs present evidence, examples, or explanations supporting the thesis statement. Smooth transitions between paragraphs ensure a coherent flow of information.

The conclusion of an expository essay restates the thesis statement using different wording. It summarizes the key points discussed in the body paragraphs.

Finally, it offers a sense of closure, wrapping up the essay's main ideas. It's not just a repetition of earlier information but rather a synthesis of the key points to leave a lasting impression on the reader.

How to Write an Expository Essay?

Writing an expository essay involves a step-by-step process to effectively communicate information. Here's a guide to crafting an expository essay:

Select a Topic

When selecting a topic for an expository essay, it's crucial to choose something that's not only interesting but also suitable for an informative discussion.

Consider the following pointers while choosing an expository essay topic:

Select a topic that personally interests you.
Choose a topic that can be explained within the essay's scope
Choose subjects allowing for an objective, fact-based analysis.
Consider prevalent issues or areas of curiosity for discussion.

Conduct Research

When researching for your expository essay, explore diverse and credible sources like books, scholarly articles, and reputable websites.

Ensure the information gathered directly relates to your topic and is from reliable sources. Verify the credibility by checking the author's credentials and publication dates.

Consider various perspectives to present a well-rounded view. Organize your findings systematically, keeping detailed notes for citation. This approach helps in crafting a well-informed and supported expository essay.

Create an Outline

Develop a structured outline for your essay. Organize your thoughts, decide on the main points, and arrange them logically.

Here's what the general structure of an expository essay looks like:

This outline template provides a clear structure, allowing for a well-organized and coherent expository essay.

View this in-depth guide on creating an expository essay outline for a structured essay!

Write The Introduction

The introduction of an expository essay plays a pivotal role in engaging the reader and setting the stage for the discussion. Here are the essential components:

Engaging Hook : Begin your essay with a captivating fact, question, quote, or story related to the topic to captivate the reader's attention and encourage them to continue reading.
Background Context: Offer essential background information about the topic, providing the necessary context for the reader to understand its relevance and importance.
Clear Thesis Statement: End the introduction with a clear thesis statement. It should express the main idea or argument of your essay. This statement helps guide the reader, indicating the purpose and direction of your essay.

Compose Body Paragraphs

The body paragraphs serve as the essay's core.

Each paragraph starts with a topic sentence introducing the main idea. Back up this idea with evidence or examples to support your point.

Make sure each paragraph smoothly connects to the next for a logical flow of ideas. This structured approach ensures a coherent and well-supported discussion throughout your expository essay.

Write the Conclusion

In the conclusion of your expository essay, recap the main points without introducing new information.

Restate the thesis in different words to reinforce the main argument. Additionally, offer closing thoughts or discuss the broader implications related to the topic. This section serves as a summary, emphasizing the significance of the essay's ideas and their broader relevance.

Revise and Edit

Revision and editing are crucial steps in the essay writing process.

Review the content for coherence and logical flow, ensure the essay structure is smooth and well-organized, and focus on clear, concise language.

Check for grammar, punctuation, and spelling errors, verify citations, and seek feedback for improvements. Finally, perform a final proofread to ensure the essay is error-free and polished for submission.

Expository Essay Example

Below is an example illustrating the concept of climate change and its effects, exploring the causes, impacts, and potential solutions.

This essay serves as a basic example of how an expository essay on climate change might be structured, offering insights into its causes, effects, and potential solutions.

Need more examples? Check out these expertly crafted expository essay examples on multiple topics and themes!

Tips for Writing a Good Expository Essay

Here are some tips for writing a good expository essay:

Ensure the essay has a clear and narrowly defined topic for effective exploration.
Present facts, statistics, and evidence without incorporating personal opinions or biases.
Utilize a well-structured format with logical sequencing of ideas and paragraphs.
Provide detailed and comprehensive explanations to support each point or idea.
Use diverse and relevant examples to illustrate and reinforce key points.
Present information in a concise and easily understandable manner, avoiding unnecessary details.
Use transitional words and phrases for seamless connections between paragraphs and ideas.
Make sure that all information presented is relevant and sourced from credible, reputable materials.

Expository Essay Topics

Expository essay topics typically revolve around subjects that can be explained, clarified, or described without personal opinions.

They cover a wide array of areas such as science, technology, education, health, social issues, historical events, and more. These topics should allow for in-depth exploration and factual analysis.

Here are some essay topics for students:

Expository Essay Topics for High School Students

The Impact of Social Media on Teenagers
Benefits of Exercise and Healthy Lifestyle Choices
Exploring Climate Change: Causes and Effects
The Importance of Education in Today's Society
Understanding Cyberbullying and its Impact
Analyzing a Historical Event: The Civil Rights Movement
The Advantages and Disadvantages of E-Learning
Explaining the Process of Photosynthesis
The Effects of Video Games on Adolescents
The Role of Leadership in Problem Solving

Expository Essay Topics for University Students

The Future of Artificial Intelligence and its Ethical Implications
Analyzing the Impact of Globalization on World Economies
Climate Change: Policy Interventions and Global Strategies
The Psychology Behind Procrastination and Ways to Overcome It
Exploring Renewable Energy Sources and Their Viability
The Evolution of Social Media and its Societal Impact
Gender Disparities in the Workplace: Causes and Solutions
The Effects of Stress on Mental Health in Modern Society
Analyzing the Influence of Cultural Diversity in Global Business
Understanding Quantum Mechanics: Principles and Applications

Can’t pick a topic? Have a look at these extensive expository essay topics and get more ideas!

With our steps, tips, and topics, you have all you need to get started on your expository essay.

If you're still encountering challenges in composing your expository essay, our custom essay writing service is here to help.

Our proficient writers specialize in creating well-structured, informative expository essays. With our expert support, you can be sure you’ll receive a top-quality, plagiarism-free essay.

Reach out to our expository essay writing service today to get the help you need. Place your order today!

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Home / Guides / Writing Guides / Paper Types / How to Write an Expository Essay

How to Write an Expository Essay

Every student has to write an expository essay at least once in their educational career. These are actually fairly simple essays to write, but they do require some serious research skills. Like most academic essays, the expository essay requires formal writing with an introduction, body, and conclusion.

Guide Overview

Focus on the thesis
Listen to the assignment
Explain, don’t argue
Revise and edit, revise and edit
Choosing the right topic

Tips for Writing a Kick-Butt Essay

Want to really impress your professor? Here are a few ways you can turn an ordinary essay into something that will blow their socks off.

Focus on the Thesis

Your thesis is the central point of the entire essay, so if it’s amazing, you’re off to a great start. Begin with this and make sure you decide on something that is impressive to kick off the essay.

Listen to the Assignment

Your professor may give you hints on what they’re looking for. If you just write down the basics of the assignment, you could miss out on some key points. For example, your professor may hint at a preferred topic or give tips that could result in a higher score. Write it all down and then analyze what is wanted before you write.

Long before you actually put pen to paper or fingers to keyboard to write the essay, you need to complete the pre-writing phase. This is where you do research and outline your essay. You’ll be amazed at how much better your writing is when you have these basic elements in place first. If you need help with these basic elements consider using an Expository Essay Template.

Explain, Don’t Argue

If you’re not careful, an expository essay can turn into a persuasive or argumentative essay. Focus on explaining the topic, rather than convincing people of something about it.

Revise and Edit, Revise and Edit

Going over the essay once to edit and polish isn’t really enough. If you’re tight on time, such as when writing an essay for an exam, just once will do. However, if you have time, it’s a good idea to edit immediately, then let the essay sit overnight or even longer. When you come back, you won’t be as close to the writing and can look at it more objectively.

Choosing the Right Topic

Topics for an expository essay vary widely, but ideally, you should select something you’re interested in writing about. Topics can answer a question such as “How can we prevent bullying in school?” or they can describe something like a historical building in your area. Other interesting topics to inspire you include:

How does technology affect our relationships?
How to treat a burn
What are the must-haves for a freshman in college?
How to handle anxiety attacks naturally
How to train your dog to stop barking on command
Research the history of a monument in your area
Why roller skating is a great exercise

As you can see, there’s no limit to the types of topics you can choose for your essay and it really comes down to what the professor assigns you and what you enjoy writing about. How narrow your topic is will also depend on how much you plan to write. An entire history of the Civil War won’t fit into two page, for example, so you’ll need to narrow it down to a specific battle or element of the Civil War.

Writing an expository essay can actually be a fun experience if you approach it the right way. When you enjoy the topic and are interested in it, your essay will show that and will stand out from those written out of boredom.

Finally, if you’re ever facing writer’s block for your college paper, consider WriteWell Essay Templates to help you get started.

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How to Write an Expository Essay: Writing Tips & Structure

Have you ever been tasked with writing an expository essay and found yourself struggling to convey information clearly and concisely? Expository essays are a unique form of academic writing, requiring a neutral stance and factual evidence to educate the reader on a specific topic.

In this step-by-step guide on how to write an expository essay, we’ll delve into the intricacies of crafting a compelling expository essay, from brainstorming to polishing the final draft. Prepare to embark on a journey to enhance your writing skills and master the art of expository writing.

Table of Contents

Expository Essay Writing: Key Takeaways

Expository essays are structured academic writing that analyze a given topic objectively.
This guide provides a comprehensive approach to crafting an expository essay, from idea generation and research through outlining, drafting, refining and polishing techniques.
The structure of the essay should include a precise thesis statement with evidence-based body paragraphs and transition words for coherence.

The Essence of Expository Essays

Expository essays are a type of structured academic writing that utilizes factual evidence to analyze or investigate a designated topic. Different from descriptive essays and personal opinion pieces, expository writing focuses on providing the reader with information about a given topic, maintaining a neutral stance. This objective description is crucial in academic settings, where expository essays are often assigned as a means of assessment and featured in various exam formats.

To write a good expository essay, it is important to select an engaging topic and articulate a precise, well-informed thesis statement. Examining expository essay examples can offer valuable insights into constructing a well-organized, informative essay. Remember, creativity and artistry can still be incorporated into expository writing, so don’t let the formulaic nature of such essays discourage you from developing a captivating piece.

Crafting an Effective Expository Essay Outline

An effective expository essay outline is crucial for organizing your thoughts and research, as it serves as the foundation of your essay. The basic structure of an expository essay comprises an introduction, body paragraphs, and a conclusion. The more comprehensive your outline is, the less time you’ll need to spend on research and writing, ultimately making the writing process more efficient.

There is no specific length for an expository essay; however, it should be sufficient to effectively articulate the thesis statement. Typically, a five-paragraph essay is a common approach, with an introductory paragraph, three body paragraphs, and a concluding paragraph. By crafting a detailed outline, you can ensure that each section of your essay supports and builds upon your thesis statement, resulting in a cohesive and well-structured piece.

The Writing Process: Step-by-Step Guide

Now that we’ve covered the fundamentals of expository essays and the importance of outline, let’s dive into the step-by-step guide to writing an expository essay.

This guide will cover idea generation, research, outlining, drafting, refining, and polishing, providing a comprehensive approach to crafting a compelling expository essay, including problem and solution essay techniques.

Generating Ideas and Researching

The first step to write an expository essay is brainstorming potential expository essay topics. Consider the topics discussed in class, anticipate what your teacher might expect, and choose something that genuinely interests you. This will ensure that you are engaged in the writing process and motivated to create a captivating essay. After narrowing down your options, conduct research on each topic to determine if reliable sources are easily accessible and gain a more comprehensive understanding of the subject.

Once you have gathered sufficient information, it’s time to analyze your research and select an expository essay topic that best suits your interests and meets your instructor’s guidelines. Keep in mind that your chosen topic should be able to provide enough factual evidence to support your thesis statement, as this will be the core of your essay. By selecting a strong, engaging topic, you set the foundation for a successful expository essay.

Organizing Thoughts with an Outline

Creating an outline is essential for organizing your thoughts and laying the groundwork for your expository essay. Start by developing a strong thesis statement that outlines the main idea of your essay and provides a well-informed, reasoned response to your research question. Your outline should specify what information will be included in each paragraph, ensuring that each section of your essay supports your thesis statement.

The outline serves as a roadmap, guiding you through the writing process and helping you stay focused on your topic. By organizing your thoughts and research in a logical manner, you’ll find it easier to begin writing and stay on track throughout the development of your expository essay.

Drafting the Essay

With a comprehensive outline in hand, it’s time to start drafting your expository essay. Focus on crafting well-structured body paragraphs that stay on topic and provide factual evidence to support your thesis statement. It’s often beneficial to postpone writing the introduction until after you’ve completed the body paragraphs and conclusion, as this will allow you to develop a more accurate and engaging introduction based on the content of your essay.

As you write, use transition words and sentences to connect ideas, maintain narrative flow, and guide readers through your argument. This will ensure that your essay is coherent and easy to follow, ultimately enhancing the reader’s understanding of your topic.

Refining Your Draft

Once you’ve completed the first draft of your expository essay, it’s time to refine your work. Start by reorganizing content, ensuring that each sentence serves its purpose and enhances the reader’s understanding of your topic. Edit for clarity and coherence, and double-check that your essay remains focused on your thesis statement throughout.

As you review your draft, read the paper as if it’s your first encounter with the topic. This will help you determine if the essay is coherent and if the information provided is relevant to the intended purpose of each section. Remember to abstain from attempting to make a persuasive argument and to utilize opinions as evidence, as this can detract from the objective nature of your expository essay.

Polishing the Essay: Editing and Proofreading

The final step in crafting a compelling expository essay is editing and proofreading. Check for errors in grammar, spelling, and formatting, and ensure that your citations are accurate and adherent to the assigned style guide. Tools like Grammarly can be helpful in detecting errors and phrases that lack clarity, as well as ensuring a uniform tone throughout your essay.

In addition to self-editing, consider having someone else review your work. This can provide a fresh perspective and help identify any remaining inconsistencies or areas that need improvement. With your polished expository essay in hand, you’ll be ready to present your well-researched, informative, and engaging piece to your audience.

Analyzing Expository Essay Examples

Examining expository essay examples can be an invaluable tool in understanding how to create a well-structured, informative essay. By analysing the structure, style, and use of evidence in an expository essay example, you can gain insight into crafting your own compelling piece. Remember, it’s not recommended to directly source information or text from expository essay examples, but they can serve as an inspirational reference for your work.

Take note of how the thesis statement is presented, how the body paragraphs are organized, and how the conclusion effectively summarizes the main points of the essay. By carefully studying expository essay examples, you’ll be better equipped to create your own well-crafted, engaging, and informative piece.

Diving into Expository Essay Types

Expository essays come in various forms, each with its own unique purpose and structure. Understanding the different types of expository essays can aid in selecting a subject and organizing your essay’s overall trajectory and framework. The primary types of expository essays include classification, definition, process, compare-and-contrast, and cause-and-effect essays.

Classification essays identify and organize various subjects within one category, outlining their individual characteristics. A definition essay, on the other hand, provides a clear and concise explanation of a subject matter. A process essay outlines the steps necessary for completing a task, providing the reader with an understanding of the procedure.

Compare-and-contrast essays analyze the differences and similarities between sources cited. Cause-and-effect essays investigate the reasons behind a particular occurrence and the consequences that follow. Familiarizing yourself with these expository essay types will expand your writing capabilities and help you craft a compelling piece.

Structuring Your Expository Essay

To ensure a coherent and engaging expository essay, it’s crucial to understand the expository essay structure, which includes a distinct introduction, body paragraphs, and conclusion that support your thesis statement. The introduction should include a precise and succinct thesis statement that outlines the primary focus of your essay, providing the reader with a clear understanding of the topic at hand.

Each body paragraph should contain evidence that supports your thesis statement, ensuring that every section of your essay contributes to the overall argument.

Finally, the conclusion should succinctly summarize the main points and provide a clear and concise statement of the essay’s overarching message. By following this structure, you’ll create a well-organized, informative, and engaging expository essay that effectively communicates your ideas to your audience.

The Role of the Thesis Statement

The thesis statement serves as the foundation of your expository essay, providing a succinct, precise synopsis of the primary point of your essay. A strong, clear, and memorable thesis statement is essential, as it gives the reader a clear understanding of the main focus of your essay and sets the tone for the entire piece. Examples of effective thesis statements include: “The effects of global warming are becoming increasingly evident in our environment,” “The use of technology in the classroom can have both positive and negative effects,” and “The rise of social media has had a profound impact on our society.”

To create a thesis statement, identify your essay topic, conduct research on the topic, and formulate a main idea or argument based on your findings. This statement should be concise and direct, ensuring that your essay remains focused and well-organized throughout the writing process.

Enhancing Your Essay with Transition Words and Sentences

Transition words and sentences play a crucial role in connecting ideas, maintaining narrative flow, and guiding readers through your argument. They serve as the binding element that keeps your essay’s foundation intact, preventing confusion and ensuring that your argument remains coherent and easy to follow. A lack of logical progression of thought can make it difficult for the reader to comprehend your essay’s argument, ultimately compromising its structure.

Examples of transition words and phrases include “however,” “in addition,” “on the other hand,” and “as a result.” By incorporating these transitions into your expository essay, you’ll create a seamless reading experience that effectively communicates your ideas and maintains the reader’s interest throughout the piece.

Frequently Asked Questions

How do you start an expository essay.

To start an expository essay, begin with a general statement about your topic that captures the reader’s attention. This should be followed by your thesis or main point of the essay, which can be further supported with three body paragraphs.

Use a formal tone and avoid introducing unnecessary information or summaries.

How do you write an expository essay step by step?

Writing an expository essay can be done step-by-step by organizing your thoughts, researching the topic, formulating a thesis statement, writing an introduction, composing the body paragraphs, and summarizing the essay in the conclusion.

Finally, revise and proofread the essay to ensure its quality.

What is an example of an expository essay?

An example of an expository essay is one that provides readers with a step-by-step guide on how to do something, or a descriptive essay that is loaded with details.

These types of essays seek to explain a particular topic in an informative and logical manner.

What are the 4 parts of the expository essay?

An expository essay is composed of four parts: an introduction, three body paragraphs, and a conclusion.

It provides a clear and organized explanation of a specific topic.

What is an expository essay?

An expository essay is an essay that communicates factual information, requiring the student to investigate an idea, evaluate evidence, expound on the idea, and set forth an argument concerning it in a clear and concise manner.

It is important for the student to be able to organize their thoughts and ideas in a logical manner in order to effectively communicate their argument. Splitting the text into paragraphs is a key to better readability. Start a new paragraph whenever you introduce a new idea or change direction in your argument. This will be a success.

In conclusion, crafting a compelling expository essay requires careful planning, research, and organization. By understanding the essence of expository essays, creating an effective outline, following a step-by-step writing process, and analyzing examples, you can develop your writing skills and create an engaging, informative piece.

Familiarize yourself with the different types of expository essays and the importance of structuring your essay to support your thesis statement. Remember to enhance your essay with transition words and sentences, ensuring a smooth, coherent reading experience for your audience. With these tools and techniques in hand, you’re well on your way to mastering the art of expository writing.

How to Write an Expository Essay: Definition, Outline, Writing Tips, and Examples

In the realm of academic writing, this type of essay stands as a beacon of clarity, demanding writers to illuminate a subject with precision and objectivity. Whether you're a seasoned essayist or a student embarking on your first exploration of this genre, mastering the art of expository writing is a valuable skill that transcends disciplines. This form of essay invites you to delve into expository essay topics, dissect their intricacies, and present your findings in a straightforward manner.

In this comprehensive guide, we will explore the terrain of expository writing, unraveling the techniques and strategies that transform a mere composition into a beacon of insight. From understanding the fundamental principles to honing your ability to craft a compelling thesis, join us on a journey that promises to demystify the process of writing, empowering you to articulate ideas with clarity and purpose. Or, you can get our essay writing help and take care of other important tasks set for today.

What Is an Expository Essay

An expository essay is a form of academic writing that aims to elucidate, clarify, and present a balanced analysis of a particular topic or idea. Unlike other essay types that may delve into personal opinions or narratives, the expository essay emphasizes objectivity and factual accuracy. The primary objective is to provide a clear and comprehensive explanation of the chosen subject, exploring its various facets, presenting evidence, and ensuring a logical progression of ideas.

According to an expository essay definition, this genre requires the writer to delve into research, organize information systematically, and deliver a coherent and informative piece that educates the reader on the chosen topic. Whether investigating a scientific concept, historical event, or literary work, it serves as a vehicle for conveying knowledge in a concise, lucid manner.

Expository Essay Examples

An expository essay example serves as a valuable tool for students, offering a concrete illustration of the structure, style, and depth expected in this genre of writing. By studying examples, students gain insights into effective thesis formulation, organizing ideas within paragraphs, and integrating supporting evidence to bolster arguments.

Additionally, examples showcase how to balance factual accuracy and engaging prose, providing a model for clear and concise communication. Students can draw inspiration from the content and presentation of well-crafted expository essays, honing their own skills in research, analysis, and effective expression. By the way, we have an interesting autobiography example , so check it out!

Example 1: “The Evolution of Artificial Intelligence”

This expository essay explores the multifaceted evolution of artificial intelligence (AI), examining its historical roots, contemporary applications across various industries, and the consequential societal impact. It provides a comprehensive overview of AI's journey from philosophical debates and early computational developments to its current role as a transformative force in healthcare, finance, manufacturing, and entertainment. Additionally, the essay addresses ethical considerations surrounding the widespread adoption of AI, including concerns related to job displacement, privacy, and responsible development. Ultimately, it navigates the complex landscape of artificial intelligence, shedding light on its remarkable advancements and its challenges to our ever-changing society.

Example 2: “The Benefits of Outdoor Education for Children”

This essay highlights the advantages of outdoor education for children, emphasizing its positive impacts on their physical, mental, and social development. It argues that outdoor activities like hiking, camping, and team sports not only promote physical health by encouraging movement and reducing sedentary behavior but also contribute to mental well-being by providing a respite from everyday stressors and fostering a connection with nature. Furthermore, it suggests that exposure to outdoor environments cultivates environmental awareness and a sense of stewardship among children.

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Types of Expository Essay

Expository essays come in several distinct types, each serving a unique purpose and requiring specific approaches to convey information effectively. One common categorization includes:

Descriptive Expository Essay. This type focuses on painting a vivid picture of a subject, using sensory details to engage the reader's imagination. It aims to create a clear and sensory-rich portrayal of a person, place, object, or experience.
Process Expository Essay. Here, the writer breaks down a complex process or procedure into manageable steps, providing a detailed and sequential explanation. This type of essay is instructional, guiding readers through a series of actions to achieve a specific outcome.
Comparison and Contrast Expository Essay. This form involves analyzing similarities and differences between two or more subjects, offering insights into their shared characteristics or divergent qualities. It requires a careful examination of the chosen elements to highlight their relationships.
Cause and Effect Expository Essay. Focused on exploring the reasons behind an occurrence and its subsequent consequences, this type delves into the cause-and-effect relationships within a given topic. Writers elucidate the connections between actions and outcomes, fostering a deeper understanding of the subject matter.
Problem and Solution Expository Essay. Addressing real-world issues, this essay type identifies a specific problem, analyzes its root causes, and proposes viable solutions. It encourages critical thinking and problem-solving skills, compelling readers to consider alternative approaches to challenges.
Definition Expository Essay. This essay seeks to clarify and explain the meaning of a particular term, concept, or idea. Writers provide a comprehensive definition, often including examples and illustrations to ensure readers grasp the essence of the subject.
Cause and Effect Expository Essay. This type of essay examines the reasons behind a particular phenomenon or event and explores its subsequent effects. It aims to establish a clear cause-and-effect relationship, allowing readers to comprehend the interconnected elements of the topic.

Understanding these diverse types of essays empowers writers to choose the most suitable approach for effectively conveying information and achieving their communicative goals. Our experts can rewrite essay that you already did according to any of the above-mentioned types.

Expository Essay Topics

Selecting compelling expository essay topics requires thoughtful consideration of both personal interest and the potential engagement of the intended audience. Start by identifying subjects that genuinely captivate your curiosity or align with your expertise, as this enthusiasm will naturally infuse vigor into your writing. Additionally, assess the topic's relevance in the broader context, ensuring it addresses contemporary issues or timeless themes.

Consider the audience's interests, aiming for subjects that resonate with their experiences or evoke a sense of shared relevance. Striking a balance between uniqueness and accessibility is key—opt for topics that allow you to offer fresh perspectives while ensuring there is ample research material available. Ultimately, the best topics seamlessly blend your passion, the audience's interests, and the broader significance of the chosen subject, ensuring a captivating and informative exploration for both writer and reader alike. Here are expository essay ideas from our writers for your inspiration:

The influence of art on human emotions.
Exploring the life cycle of a star.
Tips for sustainable living in urban areas.
The impact of social media on political awareness.
How to cultivate a positive mindset in challenging times.
The history and cultural significance of tattoos.
The process of recycling electronic waste.
Benefits of incorporating meditation into daily routines.
The role of laughter in maintaining mental health.
Understanding the psychology of decision-making.
The impact of fashion on individual expression.
Tips for effective conflict resolution in relationships.
The science behind the sense of taste.
The significance of biodiversity in ecosystems.
Exploring the history of traditional folk music.
How to foster a sense of community in a neighborhood.
The benefits of learning a musical instrument.
The evolution of communication technologies.
The process of seed germination in plants.
Tips for creating a productive home office space.
The impact of artificial intelligence on job markets.
Understanding the concept of emotional intelligence.
The benefits of practicing gratitude daily.
The history and cultural importance of tea.
How to develop effective public speaking skills.
Exploring the world of virtual reality technology.
The significance of water purification methods.
Tips for maintaining a healthy work-life balance.
The process of making sustainable food choices.
The role of literature in shaping societal norms.

Expository Essay Outline

An outline for expository essay is a structured plan that serves as a roadmap for organizing the main ideas and supporting details of the essay in a logical and coherent manner. While the specific structure may vary based on the assignment or preferences, a typical outline generally includes the following components, beginning with how to start an expository essay:

Expository Essay Introduction

Hook or attention-grabbing statement.
Background information on the topic.
Clear thesis statement that presents the main idea.

Body Paragraphs (usually three or more)

Topic sentence for each paragraph, presenting a main point or supporting idea.
Supporting evidence, facts, or examples to illustrate and explain the topic sentence.
Analysis or interpretation of the evidence to connect it back to the thesis.

Expository Essay Conclusion

Restatement of the thesis in different words.
Summary of the main points discussed in the body paragraphs.
Concluding thoughts or insights, possibly suggesting implications or future considerations.

Transitions

Smooth transitions between paragraphs to ensure a cohesive flow of ideas.
Clear connections between sentences and paragraphs to guide the reader through the essay.

Revising and Editing

Space for notes on areas that may need revision or improvement.
Consideration of clarity, coherence, and overall effectiveness.

By creating an expository essay outline, a college essay writer can organize their thoughts, ensure a logical progression of ideas, and maintain a clear and concise structure. This framework helps writers stay focused on the main purpose of the essay – to inform, explain, or analyze a particular subject – while providing a roadmap for readers to follow and comprehend the information presented.

How to Write an Expository Essay Step by Step

Writing an expository essay involves a systematic process that ensures clarity, coherence, and effectiveness in conveying information. Here is a step-by-step guide to help you craft an expository essay:

Choose a Topic

Select a topic that interests you and aligns with the purpose of an expository essay – to inform, explain, or analyze a subject.

Conduct Research

Gather relevant and credible information to support your chosen topic.
Utilize reputable sources such as academic journals, books, and reliable websites.

Create an Outline

Develop a clear and organized outline that includes the introduction, body paragraphs, and conclusion.
Each section should have a specific purpose and contribute to the overall coherence of the essay.

Write the Introduction

Start with an attention-grabbing hook that relates to your topic.
Provide background information and context, leading to a concise and focused thesis statement that outlines the main idea.

Develop Body Paragraphs

Each body paragraph should begin with a clear topic sentence that introduces the main point.
Support the topic sentence with evidence, facts, or examples.
Ensure a logical flow between paragraphs, using transitions to guide the reader.

Provide Evidence

Support your points with credible evidence and examples.
Ensure that each piece of evidence directly relates to the topic sentence and supports the overall thesis of the essay.

Analyze and Interpret

After presenting evidence, analyze and interpret it.
Explain the significance of the evidence and how it relates to your thesis.
This step helps to ensure that your audience understands the relevance of the information presented.

Write the Conclusion

Summarize the main points discussed in the body paragraphs without introducing new information.
Restate the thesis in different words and offer concluding insights or implications related to the topic.

Revise and Edit

Review your essay for clarity, coherence, and consistency.
Check for grammatical errors and awkward phrasing, ensuring a smooth flow of ideas.
Consider feedback from others or take a break before revising to gain a fresh perspective.
Carefully proofread your essay to catch any remaining errors, typos, or issues.
Pay attention to grammar, punctuation, and argumentative essay format .

By following these steps, you can systematically approach the writing process and create a well-organized and informative expository essay. Remember to stay focused on the purpose of informing, explaining, or analyzing the chosen topic throughout the entire writing process.

Final Thoughts

Learning how to write an expository essay offers students several important advantages. First off, it helps them express their thoughts clearly and organize ideas effectively, skills that are useful not only in academics but also in various professional situations where clear communication is key.

Moreover, writing expository essays improves critical thinking as students practice analyzing information, connecting ideas, and presenting well-supported arguments. This skill is valuable in everyday decision-making and problem-solving scenarios.

Additionally, the process of crafting such essays enhances research abilities, teaching students how to find, evaluate, and use information effectively. Overall, mastering expository writing equips students with practical, transferable skills that can positively impact their academic and professional pursuits. You can use our research paper service to cope with assignments better and faster.

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What are the Different Types of Expository Essays?

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How to Write an Expository Essay

Published by Grace Graffin at August 17th, 2021 , Revised On July 26, 2023

Expository means “to describe or explain something” . It is related to the words ‘exposition’, ‘expound’, and ‘expose’ – to explain or reveal the meaning, to lay open, speak one’s mind.

Whenever there is a need to gather research and describe an idea, a topic , or a process clearly and logically, it is done in the form of an expository essay .

An expository essay requires the writer to take a balanced approach to the subject matter rather than justifying a particular point of view.

Expository essays are assigned to students to evaluate their subject knowledge and composition skills. When compared with argumentative essays , they involve a lot less research.

Definition of Expository Essay

“The expository essay is the type of essay that involves an investigation of an idea or topic, appraises relevant supporting evidence material, and presents an argument in a clear and concise manner. ”

When to Write an Expository Essay

Your school or university could assign an expository essay to you as coursework or as part of an online exam.

However, the guidelines may or may not clearly state that your assignment is an expository essay. If that is the case, then look for keywords like ‘explain’, ‘describe’, ‘define’, etc., to be sure that what has been asked for is an expository essay.

You might even be asked to explain and emphasise a particular concept or term. Writing a simple definition will not be enough because you will be expected to explore the ideas in detail.

Writing an Expository Essay

An expository essay should not be based on your personal experiences and opinions. It rather takes an objective approach. You will be expected to explain the topic in a balanced way without any personal bias.

Make sure to avoid the first and second person (“I” and “You”) when writing an expository essay.

How to Structure an Expository Essay

The structure and format of your expository essay assignment will depend on your school’s guidelines and the topic you are investigating. However, it is always a good idea to develop an outline for your essay before starting to work.

The Five-Paragraph Essay Writing Approach

An expository essay will require you to take the five-paragraph essay approach: an introductory paragraph , a main body paragraph , and a concluding paragraph . This is often referred to as the hamburger style of the essay because, like a hamburger, it contains five main parts: the introduction and conclusion being the bun that encapsulates everything.

Rationale and Thesis Statement

Start your essay with a rationale and thesis, also known as the thesis statement , so your readers know what you set out to achieve in your expository essay assignment. Ensure the thesis statement is narrow enough to follow the guidelines in the assignment brief. If the thesis statement is weak and too broad, you will struggle to produce a flawless expository essay.

The Framework

Construct a framework, so you know what elements will constitute the basis of your essay.

Expository Essay Introduction

Like other essay types , an expository essay begins with an introduction , including a hook, background to the topic, and a thesis statement. Once you have grabbed the readers’ interest, it will be easier to get them to read the remaining essay.

Frequently Asked Questions

Will i need the skill of expository writing after i finish my studies.

It depends on what you are studying for. While you might or might not write any more expository essays after your formal education has ended, the skill will be very useful in certain careers, such as business reports, journalism, and in scientific and technical writing.

How does an expository essay differ from an argumentative essay?

An argumentative essay is usually longer and requires more research. It starts with a claim about something that will need supporting evidence. And both sides of the argument need to be discussed. In an expository essay, there is no requirement to make an original argument and defend/support it.

What is the purpose of expository essays?

This style of essay is necessary when you have to showcase your knowledge on a given subject, or your ability to gather research on one and present your findings.

How long is an expository essay?

There is no fixed length but an expository essay could be part of an exam, in which case it might only be 1,000 words or less. They are usually shorter than argumentative essays . It can depend on the subject under discussion. You will likely be given instructions on the required word count.

Are there different types of expository essay?

There are six different types of expository essay, each with a different purpose.

The six types are:

Process essay – describing a task, a method, how to complete something Cause and effect essay – why something happened and its effects Problem-solution essay – provide analysis of problems and their solutions Compare and contrast essay – describe the similarities and differences between two subjects Definition essay – define the topic in detail and explain the how, what, and why Classification essay – separate the topic’s categories and define them in detail

When you are assigned your essay, you should be able to distinguish which of these approaches you are required to take.

How to Write an Expository Essay

Last Updated: December 13, 2022 Fact Checked

This article was co-authored by Tristen Bonacci . Tristen Bonacci is a Licensed English Teacher with more than 20 years of experience. Tristen has taught in both the United States and overseas. She specializes in teaching in a secondary education environment and sharing wisdom with others, no matter the environment. Tristen holds a BA in English Literature from The University of Colorado and an MEd from The University of Phoenix. There are 10 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 564,748 times.

Expository essays are often assigned in academic settings. In an expository essay, you need to consider an idea, investigate the idea, then explain the idea. Some expository essays may include an argument, while others are purely informative. [1] X Trustworthy Source Purdue Online Writing Lab Trusted resource for writing and citation guidelines Go to source While it may seem overwhelming, writing an expository essay is easy if you take it one step at a time.

Sample Essay Conclusion

Planning Your Essay

If you are writing an expository essay for an assignment, read the assignment guidelines. Ask your instructor if anything seems unclear.

If you are writing your essay for a class assignment, consider what your instructor will expect you to include in your essay.

Step 3 Generate ideas for your expository essay.

Try listing. List all your ideas for your expository essay. Then look over the list you have made and group similar ideas together. Expand those lists by adding more ideas or by using another prewriting activity. [6] X Research source
Try freewriting. Write nonstop for about 10 minutes. Write whatever comes to mind and don’t edit yourself. After you finish writing, review what you have written. Highlight or underline the most useful information for your expository essay. Repeat the freewriting exercise using the passages you underlined as a starting point. You can repeat this exercise many times to continue to refine and develop your ideas. [7] X Research source
Try clustering. Write a brief explanation of the subject of your expository essay on the center of a piece of paper and circle it. Then draw three or more lines extending from the circle. Write a corresponding idea at the end of each of these lines. Continue developing your cluster until you have explored as many connections as you can. [8] X Research source
Try questioning. On a piece of paper, write out “Who? What? When? Where? Why? How?” Space the questions about two or three lines apart on the paper so that you can write your answers on these lines. Respond to each question in as much detail as you can. [9] X Research source

Trustworthy internet sources usually include academic institutions like universities or research labs, government websites, and non-profit organizations.

Step 6 Evaluate your sources to determine their credibility before you decide to use them.

Identify the author and his or her credentials. Think about what qualifies this person to write about their subject. If the source has no author or the author does not have adequate credentials, then this source may not be trustworthy.
Check for citations to see if this author has researched the topic well enough. If the author has provided few or no sources, then this source may not be trustworthy.
Look for bias. Think about whether or not this author has presented an objective, well-reasoned account of the topic. If the author seems to value a particular argument or slant that is not supported or only thinly supported by fact, then this source may not be trustworthy.
Consider the publication date to see if this source presents the most up to date information on the subject.
Cross-check some of the information in the source. If you are still concerned about a source, cross-check some of its information against a trustworthy source.

Show when you have quoted a source word for word by putting it into quotation marks. Include information about the source such as the author’s name, article title or book title, and page number.
Write down the publishing information of each source. You will need this information for your "References," "Bibliography," or "Works Cited" pages. Format this page according to your instructor's guidelines.

Make sure your thesis is arguable. Do not state facts or matters of taste. For example, "George Washington was the first president of the United States," is not a good thesis because it states a fact. Likewise, "Die Hard is a great movie," is not a good thesis because it expresses a matter of taste. [16] X Trustworthy Source University of North Carolina Writing Center UNC's on-campus and online instructional service that provides assistance to students, faculty, and others during the writing process Go to source
Make sure your thesis provides enough detail. In other words, avoid just saying that something is "good" or "effective." Instead, say what makes something "good" or "effective. [17] X Trustworthy Source University of North Carolina Writing Center UNC's on-campus and online instructional service that provides assistance to students, faculty, and others during the writing process Go to source

Introducing Your Essay

Step 1 Begin with an engaging sentence that gets right into your topic.

An engaging hook can take many forms. You could start with an anecdote, an informative and attention-grabbing quote, a bold opinion statement, or anything that will make your readers want to continue with your essay.

If you are writing about a book, provide the name of the work, the author, and a brief summary of the plot.
If you are writing about a specific day in history, summarize the day's events. Then, explain how it fits into a broader historical scope.
If you are writing about a person, name the person and provide a brief biography.
Keep in mind that your context should lead up to your thesis statement. Explain everything your reader needs to know to understand what your topic is about. Then narrow it down until you reach the topic itself.

Expressing Your Main Points

Step 1 Determine how many paragraphs to include.

A five-paragraph essay should include three body paragraphs. Each body paragraph should discuss a piece of supporting evidence that supports your thesis.
Even if your essay is longer than five paragraphs, the same principles still apply. Each paragraph should discuss a piece of supporting evidence.

Step 2 Begin each paragraph with a topic sentence.

"Dogs played an active role in Marine Corps missions in the Pacific."
"The Doberman Pinscher was the official dog of the US Marine Corps during WWII, but all breeds were eligible to train as war dogs."
"War dogs were even eligible to receive military awards for their service."

Step 3 Elaborate on your supporting evidence.

Most of your evidence should be in the form of cited quotes, paraphrases, and summaries from your research.
Your evidence could also come from interviews, anecdotes, or personal experience.
Try to provide at least two to three pieces of evidence to support each of your claims.
For example, if a paragraph starts with, "War dogs were even eligible to receive military awards for their service," the supporting evidence might be a list of dogs who got awards and the awards they were given.

Step 4 Analyze the significance of each piece of evidence.

You could write, "Even though Dobermans were the most common breed used in WWII, they were not the only breed, and were not the only dogs recognized for their help."

Concluding Your Essay

Step 1 Restate and rephrase your thesis.

Note that the second sentence repeats the information provided in your original thesis. It just says it in a new way while also hinting at the information you included in the body of the essay.

Step 2 Summarize and review your main ideas.

Explain how the topic affects the reader
Explain how your narrow topic applies to a broader theme or observation
Call the reader to action or further exploration on the topic
Present new questions that your essay introduced

Expert Q&A

If you are unsure about anything as you work on your essay, talk to your instructor or meet with a writing tutor for help. Thanks Helpful 2 Not Helpful 0

↑ https://owl.purdue.edu/owl/general_writing/academic_writing/essay_writing/expository_essays.html
↑ https://www.grammarly.com/blog/expository-essay/
↑ Tristen Bonacci. Licensed English Teacher. Expert Interview. 21 December 2021.
↑ http://writing.ku.edu/prewriting-strategies
↑ https://grammar.yourdictionary.com/grammar-rules-and-tips/tips-on-writing-an-excellent-expository-essay.html
↑ http://www.writing.utoronto.ca/advice/reading-and-researching/notes-from-research
↑ http://writingcenter.unc.edu/handouts/thesis-statements/
↑ https://writingcenter.unc.edu/tips-and-tools/thesis-statements/
↑ https://owl.purdue.edu/owl/research_and_citation/using_research/quoting_paraphrasing_and_summarizing/index.html
↑ https://owl.purdue.edu/owl/general_writing/common_writing_assignments/argument_papers/conclusions.html

About This Article

Before you write an expository essay, take some time to jot down ideas for your essay. Try the clustering method by writing a brief explanation of your subject in a bubble in the center of your page. Then, draw 3 or more lines extending from the circle and jot down idea bubbles that connect to your main theme. Once you have a plan for your expository essay, write out an outline to organize what you’re going to say. Make sure to begin your outline with an engaging introduction sentence. After the introduction sentence, provide some background information and include your thesis statement, which is your main argument. If you’re writing a 5 paragraph essay, you should include 3 body paragraphs after your introduction then a conclusion paragraph that summarizes your main points. However you organize your essay, make sure to include credible sources for important information, like statistics, so your teacher knows that it’s accurate. To learn how to use transitions in your essay, read more from our Writing co-author. Did this summary help you? Yes No

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What is an Expository Essay and How to Write It

You’ve been asked to write an expository essay on a particular topic. You know that an essay is generally a written composition that is usually limited in length and reflects the author’s perspective. However, the “expository” part is a little less clear. Keep reading, and you’ll get enough information to understand what an expository essay is and how to create an effective expository essay that meets the assignment requirements.

What is an expository essay, what is the purpose of expository writing, when should you write an expository essay, 5 types of expository essays, how to structure an expository essay, how to write an expository essay, key takeaways, frequently asked questions about expository essays.

The expository essay is the appropriate type of essay to write if you need to inform your audience. If your intent is to critically compare, argue, or persuade, you will want to consider a different essay format. To explain it in more detail:

An expository essay is a type of academic writing that aims to present a balanced and objective analysis of a specific topic.
Expository essays often employ various techniques to enhance clarity and understanding. These techniques may include definition, comparison and contrast, cause and effect analysis, problem and solution exploration, or descriptive explanations. The writer should also ensure that the essay maintains a neutral and objective tone, avoiding personal biases or emotional language.
In an expository essay, the writer typically starts with an introduction that presents the topic and provides an overview of what will be discussed in the essay. The body paragraphs then delve into the details, presenting evidence, examples, and relevant information to support the main points. Each paragraph should focus on a specific aspect or subtopic, and the information should be organized logically and coherently.
Expository essays are commonly assigned in academic settings as they encourage critical thinking, research skills, and the ability to present information in a clear and concise manner.
The ability to write an expository essay is an essential skill for students and professionals. It promotes critical thinking, objectivity, and clear and concise communication.

The primary goal of expository writing is to explain or clarify a concept, process, or phenomenon using evidence, examples, and logical reasoning. Unlike persuasive or argumentative essays, the purpose of an expository essay is not to convince the reader of a particular viewpoint or opinion, but rather to provide clear and concise information.

The main objectives of expository writing are:

Informing: Expository writing aims to educate and provide readers with new or valuable information. It seeks to convey facts, details, concepts, or ideas about a topic in a straightforward and concise manner.
Explaining: Expository writing helps readers grasp complex subjects by breaking them down into simpler terms. It aims to clarify abstract concepts, processes, or phenomena, making them more accessible and understandable.
Instructing: Expository writing provides step-by-step instructions or guidelines on how to perform a task, accomplish a goal, or understand a process. It offers a clear sequence of actions or explanations to ensure readers can follow and replicate the instructions.
Presenting an analysis: Expository writing often involves analyzing and evaluating information, data, or evidence related to a particular subject. It may include comparing and contrasting different viewpoints, examining cause-and-effect relationships, or offering an objective evaluation of a situation.

Overall, the purpose of expository writing is to provide readers with accurate, unbiased, and well-organized information about a specific topic. It aims to enhance understanding, broaden knowledge, and facilitate learning by presenting information in a clear, coherent, and logical manner.

An expository essay is a good choice when the goal is to inform, explain, describe, or instruct. You may be assigned an expository essay as part of an in-class exam or coursework assignment. Here are some common situations in which writing an expository essay would be appropriate:

Academic Assignments: Expository essays are frequently assigned in educational settings. Teachers often use this type of essay to assess students’ understanding of a particular subject or to teach them how to research and present information effectively. They are common in subjects such as English, history, science, social studies, or any discipline that requires a clear explanation or analysis of a topic.
Instructional or How-to Writing: When you want to provide step-by-step instructions or guidance on how to perform a task, solve a problem, or achieve a specific outcome, an expository essay can be an appropriate format. This type of writing is commonly used in manuals, guidebooks, tutorials, or any instructional material.
Journalism or News Writing: Expository writing is prevalent in journalism, where the goal is to inform readers about current events, news stories, or investigative reports. Journalists strive to present objective information, provide background details, and explain complex issues clearly to their audience.
Professional or Technical Writing: In various professional fields, such as business, healthcare, engineering, or law, expository writing is utilized to convey information to colleagues, clients, or the general public. This includes writing reports, memos, manuals, research papers, or any form of communication that requires clear and factual presentation of information.

Expository essays can serve different purposes and present information in various ways. Here are five common types of expository essays:

Descriptive essay: This type of expository essay focuses on describing a person, place, object, event, or any subject in detail. It aims to create a vivid and sensory-rich portrayal of the topic, using language that appeals to the reader’s senses and emotions.
Process essay: Also known as a “how-to” essay, a process essay explains a sequence of steps or procedures to accomplish a task or achieve a particular outcome. It provides clear instructions and guidance, breaking down complex processes into manageable and easy-to-follow stages.
Compare-and-contrast essay: This type of expository essay explores the similarities and differences between two or more subjects. It involves examining various aspects, characteristics, or elements of the subjects and highlighting their similarities, differences, or both.
Cause-and-effect essay: A cause-and-effect essay explores the reasons (causes) behind an event, situation, or phenomenon, as well as the consequences (effects) that result from it. It aims to analyze and explain the relationship between causes and effects, demonstrating how one factor leads to another.
Problem-and-solution essay: In this type of expository essay, a specific problem or issue is identified and analyzed, followed by the presentation of potential solutions or strategies to address it. The essay outlines the problem, examines its causes and effects, and proposes practical solutions or recommendations.

It’s important to note that these are not the only types of expository essays, and there can be variations or combinations of these types. Additionally, within each type, the specific approach and structure can vary depending on the requirements of the assignment or the writer’s purpose.

Structuring an expository essay involves organizing your thoughts, ideas, and information in a clear and logical manner. Here is a commonly used structure for an expository essay:

Begin with an attention-grabbing hook to engage the reader.
Provide some background information on the topic to set the context.
Present a clear and concise thesis statement that states the main idea or purpose of the essay.
Start each paragraph with a clear topic sentence that introduces the main point of the paragraph.
Support your topic sentence with evidence, facts, examples, or expert opinions that relate to the main point.
Provide detailed explanations, analysis, or descriptions to clarify and develop your ideas.
Use transitional words and phrases to ensure smooth flow and coherence between paragraphs and ideas.
Each paragraph should focus on a specific aspect or subtopic related to the main idea.
Restate the thesis statement but rephrase it in a way that reinforces the main idea.
Summarize the main points discussed in the body paragraphs.
Avoid introducing new information or ideas in the conclusion.
End with a closing statement that leaves a lasting impression.

Writing an expository essay involves a systematic approach to presenting information in a clear and objective manner. Here is a step-by-step guide on how to write an expository essay:

Understand the purpose and requirements: Familiarize yourself with the purpose of the essay and any specific guidelines or requirements. Then, determine the topic or subject of your expository essay and gather relevant information and resources.
Conduct research and gather information: Conduct thorough research on your topic to gather factual information, examples, evidence, or expert opinions.
Plan and outline: Develop a clear and coherent outline that includes an introduction, body paragraphs, and conclusion. Decide on the main points or subtopics you will cover in each paragraph of your expository essay and arrange your ideas in a logical order that flows well.
Write the introduction: Be sure to include a clear and concise thesis statement that states the main idea or purpose of your expository essay.
Write the body paragraphs: Write one paragraph for each main idea, using transitions to ensure a smooth flow throughout.
Write the conclusion: Restate your thesis statement and summarize the evidence.
Revise and edit: Review your expository essay for clarity, coherence, and logical flow, and check for grammar, spelling, and punctuation errors. Remember to always maintain an objective tone and focus on presenting information rather than expressing personal opinions.

As you can see, effective expository essays vary widely based on their topic and ultimate purpose. However, they have several important characteristics in common. When you’re writing an expository essay, keep the following tips in mind:

Use clear, concise, and formal language, avoiding unnecessary jargon or complex terms.
The thesis statement needs to be clear, concise, and appropriately focused.
Provide sufficient evidence and examples to support your claims and make your writing more credible.
Consider the logical flow of your ideas and make sure they are presented in a coherent manner.
Use appropriate transitions to connect your sentences, paragraphs, and ideas.
Remember that the specific structure of your expository essay may vary depending on the requirements of your assignment or the complexity of your topic. Adapt the structure as needed while ensuring that your essay is organized and focused on conveying information effectively.

You should consider writing an expository essay when you need to explain, inform, or describe a particular topic or subject to your readers. Expository essays are usually assigned in academic settings, but they can also be used in other contexts, such as writing articles or blog posts. For example, an expository essay would be appropriate for purposes such as explaining the benefits of a healthy lifestyle, describing the process of a scientific experiment, or discussing the impact of technology on society.

Expository essay: The main purpose of an expository essay is to explain, describe, or inform the reader about a particular topic or subject. It should be written in a neutral manner, focusing on presenting facts, explaining concepts, and offering a clear understanding of the topic. Argumentative essay: The primary purpose of an argumentative essay is to present a well-structured argument or position on a specific issue. The writer takes a clear stance on a topic and provides strong arguments, counterarguments, and evidence to support their position. The language used may be more passionate and persuasive to convince the reader.

The length of an expository essay can vary depending on the specific requirements or guidelines provided by your instructor or the purpose of your writing. Expository essays can range from a few hundred words for shorter essays to several thousand words for more in-depth or research-based essays. The number of body paragraphs typically range from three to five, but it can vary based on the complexity of the topic and the amount of information you need to convey.

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How to Write an Expository Essay

Sam Benezra

The expository essay is a genre of nonfiction writing in which a writer aims to explain a topic or concept. In this genre of essay writing, the writer is not required to put forward an original argument, but rather aims to educate the reader on a topic. This contrasts with the argumentative and persuasive essay genres, in which the writer takes a clear stance on a controversial topic, with the goal of swaying the reader toward agreeing with their position. An expository essay may cover a controversial topic, but in this genre, the writer will not take a hard stance on the topic, but rather provide a holistic overview of it.

Expository writing aims to be objective and thorough in its analysis. The term “expository” means to explain, describe, or define. In effect, the author should try to present a balanced perspective on the topic at hand. Expository essays most often appear in textbooks, in encyclopedias, in journalistic articles, and in scientific or technical writing.

In academic settings, expository essays are often assigned in high school or university courses to assess students’ understanding of a given topic. An expository essay prompt will typically ask the writer to “explain,” “define,” or “explore,” a given subject.

In this article, we’ll discuss the style, substance, and structure of expository essays.

Style of Expository Writing

In an expository essay, the writer aims to present information as impartially as possible. As a rule, expository essays generally avoid the use of subjective phrasing and vocabulary. They are centered around the presentation of facts and provide less analysis than other forms of writing.

In an argumentative or persuasive essay, writers will typically present facts in conjunction with an analysis. In this context, facts are used as evidence in support of a specific claim or argument, with the intention of leading the reader to a specific conclusion.

In expository writing, facts stand on their own. Any analysis is used toward the purpose of clarifying or explaining the factual information that is presented, not for the purpose of persuading the reader. Expository essays on controversial topics should therefore be dialectical in the sense that they give equal voice to all perspectives on the issue.

Because expository essays strive for this objective tone, they are virtually always written in the third person. The third person enables the writer to remove their subjectivity from the writing as much as possible. In other forms of writing, the writer’s voice may play an important role. In expository writing, the writer should aim to remove their voice as much as possible from the writing, allowing the information presented in the essay to speak for itself.

Process of Writing an Expository Essay

Choose a topic.

The process of writing an essay always begins with choosing a topic to write about. Expository essays generally seek to explain a phenomenon, event, idea, or object. There are a variety of sub-genres of expository writing, including but not limited to:

Definitional Article: Provides a detailed description of a phenomenon, event, idea or object (for example, an encyclopedia article)
Journalistic Article: Provides a detailed explanation of a current event or situation (for example, a newspaper article)
The How-To Article: Describes a process in a series of steps (for example, a recipe)
The Comparative Essay: Compares and contrasts two or more subjects in an impartial and informative manner
Analysis of an Issue: Describes an issue and various positions on or solutions for the issue, backed by evidence and data

In all of these sub-genres, the primary purpose of the essay — to inform and educate the reader about the subject of the essay — remains constant.

The research phase is the most important, and often the lengthiest stage in the development of an expository essay. During the research phase, the writer aims to develop a comprehensive understanding of their topic by consulting a variety of sources.

The research process may vary depending on the topic and the type of article. For example, a reporter covering a local crime for a newspaper will likely gather information through interviews of eyewitnesses and the police. They may also include background information about crime in the area by analyzing police records and public databases that provide crime statistics.

In contrast, a graduate student writing an essay on the American economy during World War II would research their topic by reading several books that provide various perspectives on the topic and by analyzing primary sources in research libraries.

A food blogger writing a recipe for peanut butter cookies would consult and experiment with various other recipes in order to develop the best process for making a peanut butter cookie.

In all cases, writers use the research process to develop expertise on the topic of their writing, so that they can then educate their readers.

Organize Information

After completing the research phase, you can start to compile and organize the information you’ve gathered during their research. During this transitional phase, you should start by thinking about how you can present your topic most clearly and logically.

The way information is presented to the reader can vary depending on the writer’s approach. Using our previous example of an essay on the American economy during World War II, the writer may see it fit to present their information chronologically — that is, organized sequentially by time. This approach enables the writer to emphasize changes in the economy at different stages of the war.

Alternatively, the writer could organize their research by categories. In this example, they might organize their paper by different industries in World War II and discuss the features of each industry during this time period in depth.

Both approaches are equally valid, but they provide different perspectives on the topic of the essay. It is important to think broadly about how you want to present your topic and more specifically about key points of emphasis as you organize your research.

Build Outline

After organizing your research in a logical order, you can start to build an outline . A complete outline should contain a draft of your thesis, topic sentences for each body paragraph or section, and evidence organized under each major claim you make throughout the essay. By the time you finish your outline, you should have completely finished gathering and organizing your evidence.

With a complete outline in hand, you can start to write your essay in earnest. With a complete and thorough outline, the essay-writing process should mostly consist of connecting evidence and fleshing out sections of your paper with transitions. It is important that your paper has a natural and logical flow and reads clearly.

Revise/Edit

Once a full draft has been completed, you can start the revision and editing process. In the revision phase, the writer aims to improve the essay by making changes to organization, structure, and word choice. In an expository essay, you should revise with clarity in mind. Often this may mean simplifying sentence structure or word choice or rearranging the structure to flow more logically. Editing refers to the basic process of proofreading the essay and fixing grammatical and spelling errors. Essays will often go through multiple stages of revision and editing before being finalized.

Structure of an Expository Essay

Like other genres of essay writing, expository essays are typically composed of an introduction that includes a thesis statement, body paragraphs featuring supporting details, and a conclusion . Some sub-genres of expository writing may feature variances on this structure. A “How-To” article, for example, may feature a bulleted list of steps in the body rather than traditional supporting paragraphs. However, most expository essays are written in a traditional essay format.

Introduction

The introduction of an expository essay should provide the reader with a general overview of the information that will be presented throughout the essay. The introduction of an expository essay will typically include three key features: a hook or topic sentence, exposition , and a thesis statement .

The hook is the first one or two sentences of an essay. In an expository essay, the hook serves to clearly present the topic of the essay. In some forms of essay writing, there is an emphasis on catching the reader’s interest early on in the essay, hence the phrase “hook”. In persuasive essay writing, for example, the use of an attention-grabbing quote or narrative component early on in an essay can serve to draw the reader into the writer’s perspective, thereby manipulating the reader. In an expository essay, this kind of dramatic flourish is generally unnecessary, and even distracting. Instead, the writer should attempt to introduce the reader as objectively as possible.

After the hook, the writer elaborates on their topic in the exposition , forming the middle of the introduction. In this section, the writer introduces key concepts and characters, which will be analyzed further in the body of the essay.

The thesis statement is typically contained in the last couple sentences of the introduction. In an expository essay, the thesis statement serves to state points of emphasis about the topic of the essay. In this genre of essay writing, the thesis statement does not need to be an arguable claim as it would in an argumentative or persuasive essay. Rather, the thesis statement should serve to bring the reader’s attention to key aspects of the topic that you want to highlight.

The body of an expository essay is composed of separate body paragraphs that individually bring attention to an aspect of the topic. Each of the body paragraphs should present details that support the thesis. Typically, body paragraphs of an expository essay will include the following features: a topic sentence , evidence , and a transition to the next body paragraph.

In the topic sentence of a body paragraph, the writer will always make a general statement that ties back to the thesis or reinforces the thesis statement. Depending on how long the essay is and how it is organized, multiple body paragraphs may discuss the same sub-topic or theme, but they should always serve to introduce an idea or some information that relates to the thesis. Each body paragraph should put forward new information that is necessary to understand the paper’s thesis.

After the topic sentence, the bulk of each body paragraph will be devoted to presenting evidence or information that supports the statement made in the paragraph’s topic sentence.

At the end of each body paragraph, the writer should write a brief transition to the next paragraph, allowing the essay to flow smoothly from one section to the next. The transition should be no longer than a sentence or two.

In the conclusion of an expository essay, the writer should reframe the thesis in light of the information presented throughout the essay. The conclusion should never present any new significant information or evidence. Rather, the writer should use the conclusion to tie together the information presented throughout the essay and to open up a discussion to broader implications.

In Conclusion

In an expository essay, the writer’s main purpose is to inform and educate their audience. In format and structure, expository essays typically resemble other genres of nonfiction essays. However, unlike similar genres like the argumentative or persuasive essay, the expository essay doesn’t aim to advance a position or argument, but rather to present information in as balanced and impartial a manner as possible.

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Students Are Likely Writing Millions of Papers With AI

Illustration of four hands holding pencils that are connected to a central brain

Students have submitted more than 22 million papers that may have used generative AI in the past year, new data released by plagiarism detection company Turnitin shows.

A year ago, Turnitin rolled out an AI writing detection tool that was trained on its trove of papers written by students as well as other AI-generated texts. Since then, more than 200 million papers have been reviewed by the detector, predominantly written by high school and college students. Turnitin found that 11 percent may contain AI-written language in 20 percent of its content, with 3 percent of the total papers reviewed getting flagged for having 80 percent or more AI writing. (Turnitin is owned by Advance, which also owns Condé Nast, publisher of WIRED.) Turnitin says its detector has a false positive rate of less than 1 percent when analyzing full documents.

ChatGPT’s launch was met with knee-jerk fears that the English class essay would die . The chatbot can synthesize information and distill it near-instantly—but that doesn’t mean it always gets it right. Generative AI has been known to hallucinate , creating its own facts and citing academic references that don’t actually exist. Generative AI chatbots have also been caught spitting out biased text on gender and race . Despite those flaws, students have used chatbots for research, organizing ideas, and as a ghostwriter . Traces of chatbots have even been found in peer-reviewed, published academic writing .

Teachers understandably want to hold students accountable for using generative AI without permission or disclosure. But that requires a reliable way to prove AI was used in a given assignment. Instructors have tried at times to find their own solutions to detecting AI in writing, using messy, untested methods to enforce rules , and distressing students. Further complicating the issue, some teachers are even using generative AI in their grading processes.

Detecting the use of gen AI is tricky. It’s not as easy as flagging plagiarism, because generated text is still original text. Plus, there’s nuance to how students use gen AI; some may ask chatbots to write their papers for them in large chunks or in full, while others may use the tools as an aid or a brainstorm partner.

Students also aren't tempted by only ChatGPT and similar large language models. So-called word spinners are another type of AI software that rewrites text, and may make it less obvious to a teacher that work was plagiarized or generated by AI. Turnitin’s AI detector has also been updated to detect word spinners, says Annie Chechitelli, the company’s chief product officer. It can also flag work that was rewritten by services like spell checker Grammarly, which now has its own generative AI tool . As familiar software increasingly adds generative AI components, what students can and can’t use becomes more muddled.

Detection tools themselves have a risk of bias. English language learners may be more likely to set them off; a 2023 study found a 61.3 percent false positive rate when evaluating Test of English as a Foreign Language (TOEFL) exams with seven different AI detectors. The study did not examine Turnitin’s version. The company says it has trained its detector on writing from English language learners as well as native English speakers. A study published in October found that Turnitin was among the most accurate of 16 AI language detectors in a test that had the tool examine undergraduate papers and AI-generated papers.

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Schools that use Turnitin had access to the AI detection software for a free pilot period, which ended at the start of this year. Chechitelli says a majority of the service’s clients have opted to purchase the AI detection. But the risks of false positives and bias against English learners have led some universities to ditch the tools for now. Montclair State University in New Jersey announced in November that it would pause use of Turnitin’s AI detector. Vanderbilt University and Northwestern University did the same last summer.

“This is hard. I understand why people want a tool,” says Emily Isaacs, executive director of the Office of Faculty Excellence at Montclair State. But Isaacs says the university is concerned about potentially biased results from AI detectors, as well as the fact that the tools can’t provide confirmation the way they can with plagiarism. Plus, Montclair State doesn’t want to put a blanket ban on AI, which will have some place in academia. With time and more trust in the tools, the policies could change. “It’s not a forever decision, it’s a now decision,” Isaacs says.

Chechitelli says the Turnitin tool shouldn’t be the only consideration in passing or failing a student. Instead, it’s a chance for teachers to start conversations with students that touch on all of the nuance in using generative AI. “People don’t really know where that line should be,” she says.

Arizona’s Zombie Abortion Ban Is Back. It’s Every State’s Future If Trump Wins.

On Tuesday, the Arizona Supreme Court ruled that its total abortion ban, a seemingly dead law dating back to 1864, is once again enforceable, despite more recent legislation that seemed to supercede it. The zombie ban makes virtually all abortions a felony, imposing a prison sentence of two to five years for any provider. There is no exception for rape or incest. The law was enacted before women could vote, and was long presumed to be permanently unenforceable. But the Arizona Supreme Court’s conservative majority, by a 4–2 margin, has now revived it. Republican governors appointed all seven justices on the bench, and the GOP recently expanded the court to entrench this far-right majority—which had no trouble finding that a ban enacted in an era in which women were chattel remains good law in 2024. As a result of this ruling, in 14 days almost every abortion in Arizona will be a crime, and nearly every clinic will close its doors. For all intents and purposes, it’s 1864 again for pregnant people in Arizona.

The decision should serve as a warning for the rest of the country, in light of ongoing efforts to revive the Comstock Act: In the hands of a far-right court, a dead, openly misogynistic, wildly unpopular abortion ban can spring back to life with a vengeance.

This zombie law was passed in 1864, long before Arizona was a state, and was codified in 1901, at which point it included a narrow exception to save the patient’s life. Much more recently, Arizona has passed less restrictive abortion laws, including a 15-week ban that appeared to wipe out more severe bans that preceded it. In late 2022, after the Supreme Court overturned Roe v. Wade, the Arizona Court of Appeals ruled that the two conflicting abortion laws in the state had to be reconciled, or “harmonized.” It maintained that abortion would remain legal through 15 weeks when provided by licensed physicians in compliance with the state’s other laws.

But on Tuesday, the Arizona Supreme Court, tasked with finally “harmonizing” Arizona’s 15-week abortion ban with the total ban dating back to hoop skirts, ruled that in the aftermath of Roe ’s reversal in Dobbs, the total ban takes precedence: The more recent 15-week restriction, wrote the majority, “does not create a right to, or otherwise provide independent statutory authority for, an abortion that repeals or restricts” the 1864 law, “but rather is predicated entirely on the existence of a federal constitutional right to an abortion since disclaimed” by Dobbs. In other words, in “harmonizing” the two laws, the harsher one wins out—even though, as the dissenters noted, the Legislature seemed to override this absolute ban when passing the recent 15-week limit. And so, starting in two weeks, even rape victims at the earliest stage of pregnancy may not obtain a legal abortion in Arizona.

Since Dobbs, nearly two dozen states have banned or limited access to the procedure. Arizona now joins those states with almost no exceptions , according to the Guttmacher Institute. As was the case with the far-right Florida Supreme Court’s interpretation of that state’s constitution last week , the majority simply ignored any evidence that the original meaning and text of the recent law provided greater protections for reproductive freedom. Instead, the majority rejected the Legislature’s evident intent to supplant the Civil War–era law with a more lenient ban. As a consolation, it gestured toward the fact that Arizona voters will likely have an opportunity to enact a ballot initiative restoring reproductive rights. So Arizona now joins Florida as a state in which the high court takes away reproductive freedom with one hand while allowing it to go to a popular vote with the other. Abortion-rights groups say they have enough signatures to put the abortion amendment on the November ballot, creating a fundamental right to receive abortion care until viability. Unlike Florida, where amendments need 60 percent approval to pass, Arizona allows amendments to take effect with simple majority support. (Note, as well, that two justices in the majority on Tuesday have retention elections in November; if ousted, Democratic Gov. Katie Hobbs can replace them with progressives.)

In an election year in which winning the state of Arizona is an absolutely essential factor for the GOP, the abortion dog continues to catch the electoral car in ways that can only hurt Donald Trump and the GOP extremists who seek to harm women’s health and equality. So long as voters are aware of the game as it’s being played and what the stakes will be, Republicans faces the potential for heaving losses. So these efforts to do that which is extraordinarily unpopular must happen via subterfuge, wink-wink nudge-nudge public statements about states’ rights and not taking a national position on abortion, while the courts and would-be Trump administration functionaries do all the quiet dirty work. The self-evident tension between the massive public rebuke of Dobbs —in the form of state ballot initiatives and referenda , local special elections , and state Supreme Court races —and the unabating efforts by rogue legislatures and fringe Supreme Courts to roll back abortion rights, was in evidence with Donald Trump’s refusal to state a coherent position on abortion on Monday : Turning back the clock for women is a demonstrably losing issue at the ballot box. And when candidate Trump says he wants to return the issue of abortion to the states, what he is really saying is that Arizona is free to return the issue to the time before doctors understood the value of hand-washing . (Also, why would anyone take his word on anything, ever?)

What happened in Alabama in February , in Florida last week, and in Arizona on Tuesday makes it clear that returning the reproductive freedom landscape to the Victorian age requires subverting whatever happens in elections. That’s why this massive rollback will be achieved by antidemocratic measures, including promises to breathe new life into the Comstock Act, and revanchist theocratic decisions from courts attempting to do away with IVF and rape exceptions in the name of fetal and embryonic personhood .

Comstock, in particular, is an instructive comparison here. That 1873 law, read expansively, bans all abortions , including both medication and in-clinic procedures. Indeed, far-right lawyers are at the Supreme Court trying to weaponize it against abortion pills right now. Trump’s top lawyers, including Jonathan Mitchell, have said that they plan to use Comstock as a nationwide ban on abortion if Trump regains office. They tell us that they intend to stay quiet about this scheme until after the election, at which point they will prepare for an executive order accompanied by prosecutions and regulations that make abortion a federal felony in all 50 states. The plot is similar to what just happened in Arizona: Republicans enacted a seemingly moderate 15-week ban, only to stand by and watch as their colleagues on a GOP-packed court resuscitated a total ban passed during the Civil War. Democratic Attorney General Kris Mayes—who beat her anti-abortion opponent in 2022 by 280 votes—has said she won’t prosecute violations of the law. But GOP county attorneys have rejected Mayes’ efforts to shield doctors and may well seek to charge any providers that stay open, throwing access into immediate jeopardy.

The next time someone tells you they really worry about abortion rights, but that President Biden is just too old , please gently remind them that Joe Biden is not, in fact 160. That is the age of the law that will soon be sending abortion providers to prison in Arizona if they attempt to assist a victim of rape or incest. If edgy modernity is truly your thing, be afraid of Republican judges who are at war with modernity itself; they will gladly welcome the assistance of pro-choice voters whose apathy facilitates the rollback of women’s equal citizenship. And it’s now abundantly clear that we’re not rolling back the tape to the 1970s or to the 1920s. The project is to set your clocks back to the time when women didn’t even matter enough to have a vote.

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NPR defends its journalism after senior editor says it has lost the public's trust

David Folkenflik

NPR is defending its journalism and integrity after a senior editor wrote an essay accusing it of losing the public's trust. Saul Loeb/AFP via Getty Images hide caption

NPR is defending its journalism and integrity after a senior editor wrote an essay accusing it of losing the public's trust.

NPR's top news executive defended its journalism and its commitment to reflecting a diverse array of views on Tuesday after a senior NPR editor wrote a broad critique of how the network has covered some of the most important stories of the age.

"An open-minded spirit no longer exists within NPR, and now, predictably, we don't have an audience that reflects America," writes Uri Berliner.

A strategic emphasis on diversity and inclusion on the basis of race, ethnicity and sexual orientation, promoted by NPR's former CEO, John Lansing, has fed "the absence of viewpoint diversity," Berliner writes.

NPR's chief news executive, Edith Chapin, wrote in a memo to staff Tuesday afternoon that she and the news leadership team strongly reject Berliner's assessment.

"We're proud to stand behind the exceptional work that our desks and shows do to cover a wide range of challenging stories," she wrote. "We believe that inclusion — among our staff, with our sourcing, and in our overall coverage — is critical to telling the nuanced stories of this country and our world."

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She added, "None of our work is above scrutiny or critique. We must have vigorous discussions in the newsroom about how we serve the public as a whole."

A spokesperson for NPR said Chapin, who also serves as the network's chief content officer, would have no further comment.

Praised by NPR's critics

Berliner is a senior editor on NPR's Business Desk. (Disclosure: I, too, am part of the Business Desk, and Berliner has edited many of my past stories. He did not see any version of this article or participate in its preparation before it was posted publicly.)

Berliner's essay , titled "I've Been at NPR for 25 years. Here's How We Lost America's Trust," was published by The Free Press, a website that has welcomed journalists who have concluded that mainstream news outlets have become reflexively liberal.

Berliner writes that as a Subaru-driving, Sarah Lawrence College graduate who "was raised by a lesbian peace activist mother ," he fits the mold of a loyal NPR fan.

Yet Berliner says NPR's news coverage has fallen short on some of the most controversial stories of recent years, from the question of whether former President Donald Trump colluded with Russia in the 2016 election, to the origins of the virus that causes COVID-19, to the significance and provenance of emails leaked from a laptop owned by Hunter Biden weeks before the 2020 election. In addition, he blasted NPR's coverage of the Israel-Hamas conflict.

On each of these stories, Berliner asserts, NPR has suffered from groupthink due to too little diversity of viewpoints in the newsroom.

The essay ricocheted Tuesday around conservative media , with some labeling Berliner a whistleblower . Others picked it up on social media, including Elon Musk, who has lambasted NPR for leaving his social media site, X. (Musk emailed another NPR reporter a link to Berliner's article with a gibe that the reporter was a "quisling" — a World War II reference to someone who collaborates with the enemy.)

When asked for further comment late Tuesday, Berliner declined, saying the essay spoke for itself.

The arguments he raises — and counters — have percolated across U.S. newsrooms in recent years. The #MeToo sexual harassment scandals of 2016 and 2017 forced newsrooms to listen to and heed more junior colleagues. The social justice movement prompted by the killing of George Floyd in 2020 inspired a reckoning in many places. Newsroom leaders often appeared to stand on shaky ground.

Leaders at many newsrooms, including top editors at The New York Times and the Los Angeles Times , lost their jobs. Legendary Washington Post Executive Editor Martin Baron wrote in his memoir that he feared his bonds with the staff were "frayed beyond repair," especially over the degree of self-expression his journalists expected to exert on social media, before he decided to step down in early 2021.

Since then, Baron and others — including leaders of some of these newsrooms — have suggested that the pendulum has swung too far.

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New York Times publisher A.G. Sulzberger warned last year against journalists embracing a stance of what he calls "one-side-ism": "where journalists are demonstrating that they're on the side of the righteous."

"I really think that that can create blind spots and echo chambers," he said.

Internal arguments at The Times over the strength of its reporting on accusations that Hamas engaged in sexual assaults as part of a strategy for its Oct. 7 attack on Israel erupted publicly . The paper conducted an investigation to determine the source of a leak over a planned episode of the paper's podcast The Daily on the subject, which months later has not been released. The newsroom guild accused the paper of "targeted interrogation" of journalists of Middle Eastern descent.

Heated pushback in NPR's newsroom

Given Berliner's account of private conversations, several NPR journalists question whether they can now trust him with unguarded assessments about stories in real time. Others express frustration that he had not sought out comment in advance of publication. Berliner acknowledged to me that for this story, he did not seek NPR's approval to publish the piece, nor did he give the network advance notice.

Some of Berliner's NPR colleagues are responding heatedly. Fernando Alfonso, a senior supervising editor for digital news, wrote that he wholeheartedly rejected Berliner's critique of the coverage of the Israel-Hamas conflict, for which NPR's journalists, like their peers, periodically put themselves at risk.

Alfonso also took issue with Berliner's concern over the focus on diversity at NPR.

"As a person of color who has often worked in newsrooms with little to no people who look like me, the efforts NPR has made to diversify its workforce and its sources are unique and appropriate given the news industry's long-standing lack of diversity," Alfonso says. "These efforts should be celebrated and not denigrated as Uri has done."

After this story was first published, Berliner contested Alfonso's characterization, saying his criticism of NPR is about the lack of diversity of viewpoints, not its diversity itself.

"I never criticized NPR's priority of achieving a more diverse workforce in terms of race, ethnicity and sexual orientation. I have not 'denigrated' NPR's newsroom diversity goals," Berliner said. "That's wrong."

Questions of diversity

Under former CEO John Lansing, NPR made increasing diversity, both of its staff and its audience, its "North Star" mission. Berliner says in the essay that NPR failed to consider broader diversity of viewpoint, noting, "In D.C., where NPR is headquartered and many of us live, I found 87 registered Democrats working in editorial positions and zero Republicans."

Berliner cited audience estimates that suggested a concurrent falloff in listening by Republicans. (The number of people listening to NPR broadcasts and terrestrial radio broadly has declined since the start of the pandemic.)

Former NPR vice president for news and ombudsman Jeffrey Dvorkin tweeted , "I know Uri. He's not wrong."

Others questioned Berliner's logic. "This probably gets causality somewhat backward," tweeted Semafor Washington editor Jordan Weissmann . "I'd guess that a lot of NPR listeners who voted for [Mitt] Romney have changed how they identify politically."

Similarly, Nieman Lab founder Joshua Benton suggested the rise of Trump alienated many NPR-appreciating Republicans from the GOP.

In recent years, NPR has greatly enhanced the percentage of people of color in its workforce and its executive ranks. Four out of 10 staffers are people of color; nearly half of NPR's leadership team identifies as Black, Asian or Latino.

"The philosophy is: Do you want to serve all of America and make sure it sounds like all of America, or not?" Lansing, who stepped down last month, says in response to Berliner's piece. "I'd welcome the argument against that."

"On radio, we were really lagging in our representation of an audience that makes us look like what America looks like today," Lansing says. The U.S. looks and sounds a lot different than it did in 1971, when NPR's first show was broadcast, Lansing says.

A network spokesperson says new NPR CEO Katherine Maher supports Chapin and her response to Berliner's critique.

The spokesperson says that Maher "believes that it's a healthy thing for a public service newsroom to engage in rigorous consideration of the needs of our audiences, including where we serve our mission well and where we can serve it better."

Disclosure: This story was reported and written by NPR Media Correspondent David Folkenflik and edited by Deputy Business Editor Emily Kopp and Managing Editor Gerry Holmes. Under NPR's protocol for reporting on itself, no NPR corporate official or news executive reviewed this story before it was posted publicly.

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A Guide to the Total Solar Eclipse

By Rivka Galchen

On April 8th, the moon will partly and then entirely block out the sun. The total eclipse will be visible to those in a hundred-and-fifteen-mile-wide sash, called the path of totality, slung from the hip of Sinaloa to the shoulder of Newfoundland. At the path’s midline, the untimely starry sky will last nearly four and a half minutes, and at the edges it will last for a blink. On the ground, the lunacy around total eclipses often has a Lollapalooza feel. Little-known places in the path of totality—Radar Base, Texas; Perryville, Missouri—have been preparing, many of them for years, to accommodate the lawn chairs, soul bands, food trucks, sellers of commemorative pins, and porta-potties. Eclipse viewers seeking solitude may also cause problems: the local government of Mars Hill, Maine, is reminding people that trails on Mt. Katahdin are closed, because it is mud season and therefore dangerous. I have a friend whose feelings and opinions often mirror my own; when I told her a year ago that I had booked an Airbnb in Austin in order to see this eclipse, she looked at me as if I’d announced I was bringing my daughter to a pox party.

Altering plans because of this periodic celestial event has a long tradition, however. On May 28, 585 B.C., according to Herodotus, an eclipse led the Medes and Lydians, after more than five years of war, to become “alike anxious” to come to peace. More than a hundred years before that, the Assyrian royalty of Mesopotamia protected themselves from the ill omen of solar eclipses—and from other celestial signs perceived as threatening—by installing substitute kings and queens for the day. Afterward, the substitutes were usually killed, though in one instance, when the real king died, the stand-in, who had been a gardener, held the throne for decades. More recently, an eclipse on May 29, 1919, enabled measurements that recorded the sun bending the path of light in accordance with, and thus verifying, Einstein’s theory of general relativity .

Any given spot on the Earth witnesses a total solar eclipse about once every three hundred and seventy-five years, on average, but somewhere on the planet witnesses a total solar eclipse about once every eighteen months. In Annie Dillard’s essay “ Total Eclipse ,” she says of a partial solar eclipse that it has the relation to a total one that kissing a man has to marrying him, or that flying in a plane has to falling out of a plane. “Although the one experience precedes the other, it in no way prepares you for it,” she writes. During a partial eclipse, you put on the goofy paper eyeglasses and see the outline of the moon reducing its rival, the sun, to a solar cassava, or slimmer. It’s a cool thing to see, and it maybe hints at human vulnerability, the weirdness of light, the scale and reality of the world beyond our planet. But, even when the moon blocks ninety-nine per cent of the sun, it’s still daylight out. When the moon occludes the whole of the sun, everyday expectations collapse: the temperature quickly drops, the colors of shadows become tinny, day flips to darkness, stars precipitously appear, birds stop chirping, bees head back to their hives, hippos come out for their nightly grazing, and humans shout or hide or study or pray or take measurements until, seconds or minutes later, sunlight, and the familiar world, abruptly returns.

It is complete earthly luck that total eclipses follow such a dramatic procession. Our moon, which is about four hundred times less wide than our sun, is also about four hundred times closer to us. For this reason, when the Earth, moon, and sun align with one another, our moon conceals our sun precisely, like a cap over a lens. (I stress “our moon” because other moons around other planets, including planets that orbit other stars, have eclipses that almost certainly don’t line up so nicely.) If our moon were smaller or farther away, or our sun larger or nearer, our sun would never be totally eclipsed. Conversely, if our moon were larger or closer (or our sun smaller or farther away) then our sun would be wholly eclipsed—but we would miss an ecliptic revelation. During totality, a thin circle of brightness rings the moon. Johannes Kepler thought that the circle was the illumination of the atmosphere of the moon, but we now know that the moon has next to no atmosphere and that the bright circle (the corona) is the outermost part of the atmosphere of the sun . A million times less bright than the sun itself, the corona is visible (without a special telescope) only during an eclipse. If we’re judging by images and reports, the corona looks like a fiery halo. I have never seen the sun’s corona. The first total solar eclipse I’ll witness will be this one.

The physicist Frank Close saw a partial eclipse on a bright day in Peterborough, England, in June, 1954, at the age of eight. Close’s science teacher, using cricket and soccer balls to represent the moon and the sun, explained the shadows cast by the moon; Close attributes his life in science to this experience. The teacher also told the class that, forty-five years into the future, there would be a total eclipse visible from England, and Close resolved to see it. That day turned out to be overcast, so the moon-eclipsed sun wasn’t visible—but Close described seeing what felt to him like a vision of the Apocalypse, with a “tsunami of darkness rushing towards me . . . as if a black cloak had been cast over everything” and then the clouds over the sun dispersing briefly when totality was nearly over. Close has since seen six more eclipses and written two books about them, the first a memoir of “chasing” eclipses (“ Eclipse: Journeys to the Dark Side of the Moon ”) and the second a general explainer (“ Eclipses: What Everyone Needs to Know ”).

“I’ve tried to describe each of the eclipses I’ve seen, and I do describe them, but it’s not really describable. There’s no natural phenomenon to compare it to,” he told me recently. Describing an eclipse to someone who hasn’t seen one is like trying to describe the Beatles’ “Good Day Sunshine” to someone who has never heard music, he said. “You can describe notes, frequencies of vibration, but we all know that’s missing the whole thing.” Total eclipses are also close to impossible to film in any meaningful way. The light level plummets, which your eye can process in a way that, say, your mobile phone can’t.

In the half hour or so before totality, as the moon makes its progress across the circle of the sun, colors shift to hues of red and brown. (Dillard, a magus of describing the indescribable, writes that people looked to her as though they were in “a faded color print of a movie filmed in the Middle Ages”—the faces seemed to be those of people now dead, which made her miss her own century, and the people she knew, and the real light of day.) As more of the sun is covered, its light reaches us less directly. “Much of the light that you will be getting is light that has been scattered by the atmosphere from ten to twenty miles away,” Close said. Thus the color shift.

He showed me the equipment that he has used to watch six eclipses: a piece of cardboard about the size of an LP sleeve, with a square cut out of the middle, covered by dark glass. “I used gaffer tape to affix a piece of welder’s glass,” he said. There are small holes at the edge of the board, so he can see how shadows change as the moon eclipses more, and then less, of the sun. When sunlight comes from a crescent rather than from a circle, shadows become elongated along one axis and narrowed along another. “If you spread out your fingers, and look at the shadow of your hand, your fingers will look crablike, as if they have claws on them,” Close said.

Each eclipse Close has seen has been distinct. On a boat in the South Seas, the moon appeared more greenish black than black, “because of reflected light from the water,” he said. In the Sahara, the millions of square miles of sand acted as a mirror, so it was less dark, and Close could see earthshine making the formations on the moon’s surface visible. At another eclipse, he found himself focussed on the appearance of the light of the sun as it really is: white. “We think of it as yellow, but of course that’s just atmospheric scattering, the same mechanism that makes the sky appear blue,” he said. When he travelled to Jackson Hole, Wyoming, with his family, in 2017, his seven-year-old grandson said, half a minute before totality, that the asphalt road was “moving.” “It was these subtle bands of darker and lighter, moving along at walking pace. The effect it gave to your eye was that you thought the pavement was rippling,” Close said. He had never seen that before.

The moon doesn’t emit light; it only reflects it, like a mirror. In Oscar Wilde’s play “ Salomé ,” each character sees in the moon something of what he fears, or desires. The etymology of “eclipse” connects to the Greek word for failure, and for leaving, for abandonment. In Chinese, the word for eclipse comes from the term that also means “to eat,” likely a reference to the millennia-old description of solar eclipses happening when a dragon consumes the sun. If the moon is a mirror, then the moon during a solar eclipse is a dark and magic mirror.

A Hindu myth explains eclipses through the story of Svabhanu, who steals a sip of the nectar of the gods. The Sun and the Moon tell Vishnu, one of the most powerful of the gods. Vishnu decapitates Svabhanu, but not before he can swallow the sip of nectar. The nectar has made his head, now called Rahu, immortal. As revenge, Rahu periodically eats the Sun—creating eclipses. But, his throat being cut, he can’t swallow the Sun, so it reëmerges again and again. Rahu is in the wrong, obviously, but in ancient representations of him he is often grinning. To me, he looks mischievous rather than frightening.

The first story I can remember reading that featured an eclipse is Mark Twain’s “ A Connecticut Yankee in King Arthur’s Court .” The wizard Merlin imprisons an engineer named Hank Morgan, who has accidentally travelled from nineteenth-century America to sixth-century Camelot. Morgan, a man who dresses and acts strangely for the sixth century, finds himself, as one would, sentenced to be burned at the stake. But he gets out of it—by convincing others that he is the cause of an eclipse that he knew would occur. As seems only natural for a beloved American story, it’s the (man from the) future that wins this particular standoff, over the ancient ways of Merlin.

To Close, the beginning of an eclipse feels like “a curtains-up statement from the heavens: Science works. Come back in an hour.” He finds it particularly moving that someone, using only measurements and reason, and the laws of celestial motion, could have predicted the April 8th eclipse down to the minute, maybe to the second. The eclipse that surprised the warring Medes and Lydians into peace may not have been a surprise to all; it is said to have been predicted by Thales of Miletus.

I asked Close if he’d ever met someone on his eclipse journeys who wasn’t much impressed. He said no. Still, it’s possible that I and my mirror friend both have the right intuition about this experience we’ve never had. In the last chapter of Roberto Bolaño’s novella “French Comedy of Horrors,” the young narrator witnesses an eclipse while at a soda fountain with his friends; he also witnesses the people around him witnessing the eclipse, including a couple doing a dance “that was somehow anachronistic but at the same time terrifying.” On his way home, he answers a ringing pay phone and finds himself in a lengthy conversation with a stranger who claims to be a member of the Clandestine Surrealist Group, writers living in Paris’s sewer system. The stranger invites the narrator (who wants desperately to be a poet) to join them, at an appointed time and place, months into the future—but says that they can’t pay for his ticket.

His whole eclipse day is banal (soda fountain, pay phone, the price of things) but also tempting, literally surreal, and like a dream. When our hero finally makes it home, at dawn, he sees Achille, the local drunk. Achille tells him that “the eclipse thing wasn’t such a big deal and that people were always getting excited about nothing. In his opinion, true and incredible things happened in the sky every day.” Nature’s everyday wonders might be the more clandestine ones. ♦

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By Jorie Graham

By Deborah Treisman

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Guest Essay

You Don’t Just See a Total Solar Eclipse. You Feel It Completely.

Illustration of a person in a desert sitting next to a truck, with the total solar eclipse in the sky reflected in the windshield.

By Ryan Milligan

Dr. Milligan is a senior lecturer in astrophysics at Queen’s University in Belfast, Northern Ireland.

Almost one year ago, in the middle of the night, I drove from my hometown, Belfast, Northern Ireland, to Dublin to catch an early morning flight to Munich. From there I caught another plane to Bangkok, another to Singapore and yet another to Perth in Western Australia. There, I rented a camper van and began a drive of more than 750 miles north to the town of Exmouth on a remote peninsula on the northwest coast of the continent.

This was the only reasonably accessible location on the planet with decent weather prospects from which to view the total solar eclipse on April 20, 2023. The entire event lasted 62 seconds. It was the 10th total solar eclipse I’d traveled to witness.

Even as a professional solar physicist, I find it difficult to convey why eclipse chasers like me go to such extraordinary lengths to witness such a fleeting phenomenon, again and again. I was extra determined to make the pilgrimage last year after I was thwarted by clouds in Chile in December 2020, and I couldn’t afford the eye-watering cost of traveling to Antarctica in 2021. I needed to whet my appetite before embarking on another expedition to see the totality of the April 8 eclipse in Mazatlán, Mexico.

It may sound absurd, but there is no other celestial event that anyone I know would devote so much time and effort to seeing. If you wish to see the northern lights, you can hop on a plane to Iceland or Norway and have a fairly decent chance of seeing them in the winter months. If you are on the nightside of the planet during a lunar eclipse and the skies are clear, you just need to go outside and look up to see it happening. But unless you are fortunate enough to live within or close to the path of totality, witnessing a total solar eclipse will probably require meticulous planning and marshaling time and money to get you to an optimal location and a bit of luck to make sure the weather forecasts you’ve pored over hold true.

Believe me, it is worth the effort.

A total solar eclipse is not something that you see — it’s something that you experience. You can feel the temperature around you begin to drop by as much as 15 degrees over the five to 10 minutes that lead up to the eclipse. The birds and other animals go silent. The light becomes eerie and morphs into a dusky, muted twilight, and you begin to see stark, misplaced shadows abound. A column of darkness in the sky hurtles toward you at over 1,000 miles per hour as the moon’s shadow falls neatly over the sun, turning day into temporary night — nothing like the calming sunset we take for granted every day. Sometimes, a few stars or planets begin to appear faintly in the sky as your eyes get used to the new darkness.

The hairs stand up on the back of your neck and the adrenaline kicks in as your brain tries to make sense of what is going on. But it cannot. It has no other point of reference to compare these sensations to. A total eclipse elicits a unique, visceral, primeval feeling that cannot be evoked by a photograph or a video or a newspaper article, and that can be experienced only within the path of totality when the moon completely obscures the disk of the sun.

And then of course there is the crowning glory: the sun’s corona, the pearly white outer atmosphere of our nearest star that we can otherwise see only using a fleet of dedicated solar-observing spacecraft. It has an ethereal beauty that is challenging to articulate.

For those brief few moments when the corona appears bright in the sky, all the effort made to experience the totality becomes worth it. You want to soak up every second of it and process every feeling, because it is over all too soon. Once the moon’s shadow has passed you feel both exhilarated and deflated because the next opportunity to experience this sensation again could be years away and on the other side of the world. And it is something that you will crave.

There is also, of course, the professional motivation for me to gaze upon the subject of my research with my own eyes. Most other astrophysicists only get to look at exploding stars or distant comets through gargantuan telescopes, where they appear as mere pixels on a computer screen or a squiggle on a graph. It’s easy to get detached from the beauty of astronomy when your job becomes more focused on securing grant funding, teaching, administrative duties and bureaucracy. Eclipse chasing reminds me why I chose this field of work in the first place and reignites my passion — and I want to inspire my students with that same passion.

Each eclipse is different. The shape and structure of the solar corona varies over the course of each solar cycle. The longer the duration of the eclipse, the darker one’s surroundings are likely to seem. And sandwiched between the sun’s “surface” and the corona is the crimson red chromosphere, the layer of the sun’s atmosphere that I have been researching for almost 20 years to understand its relationship to solar flares. In Australia the briefness of totality meant that this region was exceptionally bright and distinguished, and one could even spot some solar prominences (clouds of hydrogen gas suspended above the chromosphere) with the naked eye. That may also be the case on Monday.

People mistakenly think that a partial eclipse is good enough. It is not. When outside the path of totality, the visibility of even 1 percent of the sun’s disk is enough to outshine the entire corona. The buzz around this year’s eclipse through North America has reached a fever pitch not seen since the “Great American Eclipse” of 2017. The duration of totality will be almost twice as long — almost four and a half minutes. (Whether the weather will cooperate is still an open question .)

This is far from the first time I’ve tried to cajole people into experiencing the totality in full. In 2017, I persuaded several of my friends in the United States to join me in Nebraska to enjoy the spectacle without forcing them to traipse halfway across the globe. They later told me that they at first thought I may have been somewhat exaggerating the experience because of my professional bias, but when the eclipse was over, I knew that they finally got it. Their faces were overcome with emotion and they struggled to articulate how they were feeling. Because it wasn’t just about what they had seen — it was about what they had experienced.

Ryan Milligan is a solar physicist at Queen’s University in Belfast, Northern Ireland. He has held research fellowships at NASA and the Science and Technology Facilities Council in Britain and was affiliated with NASA’s Goddard Space Flight Center for over a decade.

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Solar Eclipse 2024

What the World Has Learned From Past Eclipses

C louds scudded over the small volcanic island of Principe, off the western coast of Africa, on the afternoon of May 29, 1919. Arthur Eddington, director of the Cambridge Observatory in the U.K., waited for the Sun to emerge. The remains of a morning thunderstorm could ruin everything.

The island was about to experience the rare and overwhelming sight of a total solar eclipse. For six minutes, the longest eclipse since 1416, the Moon would completely block the face of the Sun, pulling a curtain of darkness over a thin stripe of Earth. Eddington traveled into the eclipse path to try and prove one of the most consequential ideas of his age: Albert Einstein’s new theory of general relativity.

Eddington, a physicist, was one of the few people at the time who understood the theory, which Einstein proposed in 1915. But many other scientists were stymied by the bizarre idea that gravity is not a mutual attraction, but a warping of spacetime. Light itself would be subject to this warping, too. So an eclipse would be the best way to prove whether the theory was true, because with the Sun’s light blocked by the Moon, astronomers would be able to see whether the Sun’s gravity bent the light of distant stars behind it.

Two teams of astronomers boarded ships steaming from Liverpool, England, in March 1919 to watch the eclipse and take the measure of the stars. Eddington and his team went to Principe, and another team led by Frank Dyson of the Greenwich Observatory went to Sobral, Brazil.

Totality, the complete obscuration of the Sun, would be at 2:13 local time in Principe. Moments before the Moon slid in front of the Sun, the clouds finally began breaking up. For a moment, it was totally clear. Eddington and his group hastily captured images of a star cluster found near the Sun that day, called the Hyades, found in the constellation of Taurus. The astronomers were using the best astronomical technology of the time, photographic plates, which are large exposures taken on glass instead of film. Stars appeared on seven of the plates, and solar “prominences,” filaments of gas streaming from the Sun, appeared on others.

Eddington wanted to stay in Principe to measure the Hyades when there was no eclipse, but a ship workers’ strike made him leave early. Later, Eddington and Dyson both compared the glass plates taken during the eclipse to other glass plates captured of the Hyades in a different part of the sky, when there was no eclipse. On the images from Eddington’s and Dyson’s expeditions, the stars were not aligned. The 40-year-old Einstein was right.

“Lights All Askew In the Heavens,” the New York Times proclaimed when the scientific papers were published. The eclipse was the key to the discovery—as so many solar eclipses before and since have illuminated new findings about our universe.

Telescope used to observe a total solar eclipse, Sobral, Brazil, 1919.

To understand why Eddington and Dyson traveled such distances to watch the eclipse, we need to talk about gravity.

Since at least the days of Isaac Newton, who wrote in 1687, scientists thought gravity was a simple force of mutual attraction. Newton proposed that every object in the universe attracts every other object in the universe, and that the strength of this attraction is related to the size of the objects and the distances among them. This is mostly true, actually, but it’s a little more nuanced than that.

On much larger scales, like among black holes or galaxy clusters, Newtonian gravity falls short. It also can’t accurately account for the movement of large objects that are close together, such as how the orbit of Mercury is affected by its proximity the Sun.

Albert Einstein’s most consequential breakthrough solved these problems. General relativity holds that gravity is not really an invisible force of mutual attraction, but a distortion. Rather than some kind of mutual tug-of-war, large objects like the Sun and other stars respond relative to each other because the space they are in has been altered. Their mass is so great that they bend the fabric of space and time around themselves.

Read More: 10 Surprising Facts About the 2024 Solar Eclipse

This was a weird concept, and many scientists thought Einstein’s ideas and equations were ridiculous. But others thought it sounded reasonable. Einstein and others knew that if the theory was correct, and the fabric of reality is bending around large objects, then light itself would have to follow that bend. The light of a star in the great distance, for instance, would seem to curve around a large object in front of it, nearer to us—like our Sun. But normally, it’s impossible to study stars behind the Sun to measure this effect. Enter an eclipse.

Einstein’s theory gives an equation for how much the Sun’s gravity would displace the images of background stars. Newton’s theory predicts only half that amount of displacement.

Eddington and Dyson measured the Hyades cluster because it contains many stars; the more stars to distort, the better the comparison. Both teams of scientists encountered strange political and natural obstacles in making the discovery, which are chronicled beautifully in the book No Shadow of a Doubt: The 1919 Eclipse That Confirmed Einstein's Theory of Relativity , by the physicist Daniel Kennefick. But the confirmation of Einstein’s ideas was worth it. Eddington said as much in a letter to his mother: “The one good plate that I measured gave a result agreeing with Einstein,” he wrote , “and I think I have got a little confirmation from a second plate.”

The Eddington-Dyson experiments were hardly the first time scientists used eclipses to make profound new discoveries. The idea dates to the beginnings of human civilization.

Careful records of lunar and solar eclipses are one of the greatest legacies of ancient Babylon. Astronomers—or astrologers, really, but the goal was the same—were able to predict both lunar and solar eclipses with impressive accuracy. They worked out what we now call the Saros Cycle, a repeating period of 18 years, 11 days, and 8 hours in which eclipses appear to repeat. One Saros cycle is equal to 223 synodic months, which is the time it takes the Moon to return to the same phase as seen from Earth. They also figured out, though may not have understood it completely, the geometry that enables eclipses to happen.

The path we trace around the Sun is called the ecliptic. Our planet’s axis is tilted with respect to the ecliptic plane, which is why we have seasons, and why the other celestial bodies seem to cross the same general path in our sky.

As the Moon goes around Earth, it, too, crosses the plane of the ecliptic twice in a year. The ascending node is where the Moon moves into the northern ecliptic. The descending node is where the Moon enters the southern ecliptic. When the Moon crosses a node, a total solar eclipse can happen. Ancient astronomers were aware of these points in the sky, and by the apex of Babylonian civilization, they were very good at predicting when eclipses would occur.

Two and a half millennia later, in 2016, astronomers used these same ancient records to measure the change in the rate at which Earth’s rotation is slowing—which is to say, the amount by which are days are lengthening, over thousands of years.

By the middle of the 19 th century, scientific discoveries came at a frenetic pace, and eclipses powered many of them. In October 1868, two astronomers, Pierre Jules César Janssen and Joseph Norman Lockyer, separately measured the colors of sunlight during a total eclipse. Each found evidence of an unknown element, indicating a new discovery: Helium, named for the Greek god of the Sun. In another eclipse in 1869, astronomers found convincing evidence of another new element, which they nicknamed coronium—before learning a few decades later that it was not a new element, but highly ionized iron, indicating that the Sun’s atmosphere is exceptionally, bizarrely hot. This oddity led to the prediction, in the 1950s, of a continual outflow that we now call the solar wind.

And during solar eclipses between 1878 and 1908, astronomers searched in vain for a proposed extra planet within the orbit of Mercury. Provisionally named Vulcan, this planet was thought to exist because Newtonian gravity could not fully describe Mercury’s strange orbit. The matter of the innermost planet’s path was settled, finally, in 1915, when Einstein used general relativity equations to explain it.

Many eclipse expeditions were intended to learn something new, or to prove an idea right—or wrong. But many of these discoveries have major practical effects on us. Understanding the Sun, and why its atmosphere gets so hot, can help us predict solar outbursts that could disrupt the power grid and communications satellites. Understanding gravity, at all scales, allows us to know and to navigate the cosmos.

GPS satellites, for instance, provide accurate measurements down to inches on Earth. Relativity equations account for the effects of the Earth’s gravity and the distances between the satellites and their receivers on the ground. Special relativity holds that the clocks on satellites, which experience weaker gravity, seem to run slower than clocks under the stronger force of gravity on Earth. From the point of view of the satellite, Earth clocks seem to run faster. We can use different satellites in different positions, and different ground stations, to accurately triangulate our positions on Earth down to inches. Without those calculations, GPS satellites would be far less precise.

This year, scientists fanned out across North America and in the skies above it will continue the legacy of eclipse science. Scientists from NASA and several universities and other research institutions will study Earth’s atmosphere; the Sun’s atmosphere; the Sun’s magnetic fields; and the Sun’s atmospheric outbursts, called coronal mass ejections.

When you look up at the Sun and Moon on the eclipse , the Moon’s day — or just observe its shadow darkening the ground beneath the clouds, which seems more likely — think about all the discoveries still yet waiting to happen, just behind the shadow of the Moon.

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