This post is out of date. You can see the new EA Handbook here. 

Effective altruism is about helping others as much as you can.

This is really difficult, but we’re making progress. And there are many outstanding ways to help. In fact, you can do much more good than you might realize.

While the mission is simple, the details aren’t. People have written entire bookshelves of content on ways to increase your impact, drawing from many different disciplines.

To help you learn the basics, we took some of the movement's best writing and made this handbook. Think of it as the textbook you’d get in your first college course. It explains the core ideas of EA, so that you can start applying them to your own life.^[1]

Note that you can also choose and request a free book about some of the most important ideas for effective altruism. You can see more at effectivealtruism.org. 

Resources besides the Handbook

Short introduction to effective altruism

You can read our essay: Introduction to Effective Altruism. You could also explore effectivealtruism.org, which compiles a number of different resources. 

Podcast series with the key ideas

Here are ten curated episodes from The 80,000 Hours Podcast to quickly get up to speed.

Online course

The Introductory Program is a free seminar-based course that covers the same content as the Handbook. We adapted it from programs run by groups at Oxford, Berkeley, and other top universities. New courses start once a month.

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Ask a question

Maybe you don’t want to read a whole book, but you’ve got a more specific question. If so, you can ask it on the Forum! 

You can also see this article for other ways to get a question answered.

Read the Handbook

The Handbook consists of “sequences” of posts on a single theme. They’ll make more sense if you read them in order, but feel free to skip around.

You can access all the content on this page (see the table of contents on the left). Or you can read from the beginning:

EA Handbook Table of Contents

1. The Effectiveness Mindset

Why is it so important to focus on "effective" altruism?

This sequence shows that despite our limited resources, we can accomplish incredible things when we think carefully before taking action.

2. Differences in Impact

How can we tell which actions do the most good?

This sequence covers ways to measure your impact and find especially promising issues to work on.

3. Expanding Our Compassion

Who should we care about helping?

This sequence examines the moral progress we've made as a species, and argues that we can do a lot of good by focusing on groups whose welfare is still neglected.

4. Longtermism

How should we think about the long-term impact of our actions?

This sequence makes the case that some of the most important work we can do involves trying to improve the long-term future of civilization.

5. Existential Risk

What can we do to prevent the worst possible outcome for humanity?

This sequence explores the possible end of human civilization, and how we can work to safeguard the future of our species.

6. Emerging Technologies

How should we prepare for technology that could reshape our existence?

This sequence looks at two ways in which future technology could pose an existential threat to humanity, and how we can address those threats.

7. What Might We Be Missing?

What are some potential problems with effective altruism, and how should we respond?

This sequence covers prominent critiques of EA, as well as responses and counterarguments from people within the movement.

8. Putting it into Practice

Once we’ve learned the basics, how can we take action?

This sequence suggests ways to get more deeply involved in effective altruism — with your career, your donations, or your free time.

Notes on the Handbook

Some of the articles in the Handbook were written a while ago, so certain elements might be out of date (e.g. statistics). If you see anything that seems especially off, feel free to let us know.

Some articles are listed as coming from "EA Global" or "EA Handbook" rather than a named author. We use the former to collect transcripts of talks from an EA Global conference, and the latter for content written by someone without a Forum account.

This resource was assembled by the Centre for Effective Altruism. We were inspired by an early version of the EA Introductory Program, and we're grateful to the people who made that possible.

Suggestions and feedback

Notice a mistake? Think we should add something? Please leave a comment or email forum@centreforeffectivealtruism.org. 

1. ^{^}

    This was updated in May 2022. You can see the previous version here.