- Open SUNY Textbooks
Open SUNY Textbooks is an open access textbook publishing initiative established by State University of New York libraries. Subject areas include: College Writing, Academic Foundations, Nursing, Information Literacy, Assessments, Web Development, Humanities, Biometrics, Mathematics.
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Open Textbook Library
Open Textbook Library's books have been reviewed by faculty from a variety of colleges and universities to assess their quality. These books can be downloaded for no cost, or printed at low cost. All textbooks are either used at multiple higher education institutions; or affiliated with an institution, scholarly society, or professional organization.
- OpenStax College
OpenStax College offers students free textbooks that meet scope and sequence requirements for most college courses. the texts are peer-reviewed. You can adopt a text or modify it to suit your teaching approach. Free online and low-cost in print. Subject areas include: Physics, Sociology, Biology, Physiology, Statistics, Pre-Calculus, Economics, and coming in early 2015 Chemistry, U.S. History, Psychology.
- LibreTexts
"Multi-institutional collaborative venture to develop the next generation of open-access texts to improve postsecondary education at all levels of higher learning".
- The Global Text Project
The Global Text Project publishes electronic texts for students in the developing world. It also maintains a database of links to books for such students. Global Text Project books have been internationalized and converted to a standard format using OpenOffice. You can access individual chapters and modify them. Subject areas include: Business, Computing, Education, Health, Science, Social Science.
- 2012 Book Archive
Archive of a small project by Andy Schmitz to archive Creative Commons-licensed copies of all the books which were available online from a specific publisher at the end of 2012. That publisher is a textbook publisher, focusing on (mostly entry-level) college textbooks. Subject areas include: include Business, Writing, Economics, Sociology, History, Math, Political Science, Literature, and Science.
- Flat World Knowledge
College textbooks for many subjects. Students can purchase books in multiple formats for less than traditional texts. Subject areas include: Business and Economics, Humanities and Social Sciences, Mathematics, Sciences, and Professionals and Applied Sciences.
- College Open Textbooks
You can search Open Textbook Content by subject. You can also create custom books using this content. Students can purchase an ebook, bound books, color bound books for less than traditional textbooks. Subject areas include: Anthropology and Archeology, Languages and Communications, Art, Law, Biology & Genetics, Literature, Business, Math, Chemistry, Music, Computer Science, Philosophy, Economics, Physics, Education, Political Science, Engineering & Electronics, Psychology, English & Composition, Science, Health & Nursing, Sociology, History, Statistics & Probability.
- Online Textbooks MIT
Some of these online textbooks are open-licensed electronic versions of print books. Others are self-published online books, or course notes which are so thorough that they serve as an alternative to a conventional textbook. Subject areas include: Aeronautics and Astronautics, Civil and Environmental Engineering, Earth, Atmospheric, and Planetary Sciences, Electrical Engineering and Computer Science, Engineering Systems Division, Foreign Languages and Literatures, Materials Science and Engineering, Mathematics, Mechanical Engineering, Media Arts and Sciences, Physics.
- Open Textbook Store
Open textbooks for a variety of math courses.