"One of my favorite sources of wisdom." 
– Vitalik Buterin (Co-founder, Ethereum) 
“Whenever there’s a cutting-edge new idea making the rounds, [LessWrong] was writing about it 5-10 years ago. A deep dive into LessWrong will make you smarter.” 
– Tim Urban (Blogger, "Wait But Why") 
“The rationality community is one of the brightest lights in the modern intellectual firmament.” 
– Bryan Caplan (New York Times Bestselling author) 
--- 
A beautifully packaged set of essays on the Art of Rationality, each book small enough to fit in your pocket (4"x6"). 
Featuring essays from 24 authors including Eliezer Yudkowsky, Scott Alexander and Wei Dai, as well as comment sections and shorter interludes from even more. 
This book set is one of the best introductions to the latest thinking of the rationality community. It is a whirlwind tour through topics ranging from art to AI, introspection to integrity, software to social science, and beyond. 
The essays were voted by users as the best published on community blog LessWrong.com, among 2000+ essays published in 2018. 
They can be appreciated without any previous LessWrong experience. 
Overall, A Map that Reflects the Territory promises an intellectual adventure that is both inviting and challenging, for anyone curious about the art of thinking clearly.

A Map that Reflects the Territory: Essays by the LessWrong Community

LessWrong

LessWrong Press

“Essays from LessWrong have been one of my favorite sources of wisdom.” —Vitalik Buterin, Co-founder of Ethereum 
Featuring essays by Eliezer Yudkowsky, Scott Alexander, Zvi Mowshowitz, and over 30 more LessWrong writers. 
Starting with the simple epistemic question of when and how to trust different sources of information, the essays go on to explore how our world is shaped by incentives, when and why complex systems become modular, and concludes with a discussion of failure, both personal and civilizational. 
The essays take a variety of forms, from thought experiments to literature reviews, as well as personal stories, microeconomic arguments, mathematical explanations, book reviews, interviews, research advice, philosophical musings, published papers, forecasts of the future, survey data, disagreements-with-Robin-Hanson, cartoons and more. 
Each essay is accompanied with unique piece of artwork, designed using machine learning software that created each image using the corresponding essay title and a diagram of the Mississippi River. 
The essays were originally published on LessWrong in 2019, and for the first time are available in print form. 
“Whenever there’s a cutting-edge new idea making the rounds, Eliezer was writing about it 5-10 years ago. A deep dive into LessWrong will make you smarter.” — Tim Urban, Author of "Wait But Why" 
“The rationality community is one of the brightest lights in the modern intellectual firmament.” —Bryan Caplan, Professor of Economics, George Mason University

The Engines of Cognition: Essays by the LessWrong Community

Hazard

Abram Demski

Alexander Turner

Ben Hoffman

Buck Shlegeris

Chris van Merwijk

Duncan Sabien

Eliezer Yudkowsky

Elizabeth Van Nostrand

Evan Hubinger

Finan Adamson

Jacob Falkovich

Jacob Lagerros

Jai Dhyani

The Carving of Reality: Essays by the LessWrong Community vol. III

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Books by LessWrong