The Library

Sequences are collections of posts that are curated by the community and are structured similarly to books. This is the place where you can find the best posts on LessWrong in easy to read formats.

Core Reading

Rationality: A-Z

A set of essays by Eliezer Yudkowsky that serve as a long-form introduction to formative ideas behind Less Wrong, the Machine Intelligence Research Institute, the Center for Applied Rationality, and substantial parts of the effective altruism community.

The Codex contains essays about science, medicine, philosophy, politics, and futurism. (There’s also one post about hallucinatory cactus-people, but it’s not representative)

Harry Potter and the Methods of Rationality

In an Alternate Universe, Petunia married a scientist. Now Rationalist!Harry enters the wizarding world armed with Enlightenment ideals and the experimental spirit.