LibreTexts

LibreTexts is the world's most comprehensive collection of open educational textbooks, spanning STEM disciplines and humanities with peer-reviewed materials. The platform lets instructors adapt, remix, and customize content to fit their courses exactly, supporting a collaborative community of educators contributing improvements.

It's most useful for college students and instructors needing comprehensive textbooks without cost barriers. Compared to traditional publishing, LibreTexts offers genuine flexibility to adapt materials and builds on a global ecosystem of educators improving content together rather than a closed corporate process.