Hundreds of complete, open college-level textbooks collected by the University of Minnesota.
A growing collection of professional quality, peer-reviewed, openly licensed, editable intro-level textbooks.
An open access textbook publishing initiative established by State University of New York libraries.
Search for quality open textbooks offered in a variety of digital formats. Search by subject and download them to your computer.
This directory provides an index of 2,965 books published across 109 Pressbooks networks.
LibreTexts is a 501 nonprofit online educational resource project. The project provides open access to its content on its website, and the site is built on the Mindtouch platform.
Lyryx offers high-quality open textbooks in the fields of accounting, mathematics, and economics.