Harry Potter and the Methods of Rationality is a work by Eliezer Yudkowsky, written as a serial between 2010 and 2015. It is somewhat infamous for being incredibly lengthy.

It is also essential reading. We have endeavored to create an Abridged Version. We trust that the reader has read JK Rowling's Harry Potter series (Books 1-7), as well as Orson Scott Card's book Ender's Game. Most of the characters and plots should be familiar; plot elements from all 7 Harry Potter books are re-mixed in this narrative, which takes place entirely within Harry's first year at Hogwarts.

Copyright note: The selection of passages for the abridged version, and the chapter titles, are our own creative work. The text within is not. As a courtesy, we provide a cached version of the text; as it is available gratis online at http://hpmor.com we feel that this is fair use of the work. The truncations in the chapters presented are intentional, no changes to the text (other than minor display adjustments) have been made between the incipits and explicits.

Book 1: Welcome to the Universe

Book 2: Battle School

Book 3: Prison Break

Book 4: The Last Adventure