A platform for discovery open access e-books.

A partnership of academic & research institutions, offering a collection of millions of titles in the public domain. Consult the "Rights" statement included in the page view of individual item for reuse.

More than 4,000 Open Access ebooks are now available at no cost to libraries or users. These titles reflect JSTOR’s high standards for quality content and are freely available for anyone in the world to use.

Developed by the Open Textbooks for Hong Kong project. Most textbooks are licensed under a Creative Commons Attribution-ShareAlike license.

This collection offers open books and textbooks from many sources. An open textbook is one that can be freely viewed, downloaded, and self-printed.They may also have non-restrictive licenses that allow for customisation and derivative works. Browse the full list of books, or use keywords to search topics.

Offers over 53,000 free e-books. Most may be freely used. Note the ”Terms of Use” for reuse.

The Internet Archive, a 501(c)(3) non-profit, is building a digital library of Internet sites and other cultural artifacts in digital form. Like a paper library, we provide free access to researchers, historians, scholars, the print disabled, and the general public. Our mission is to provide Universal Access to All Knowledge. For reuse, select those with a Creative Commons license.

Use this tool from California State University to search for free online materials related to a book by entering the ISBN of the book.