Boundless Textbooks : Art, Business, English, History, Mathematics,Sciences, and more.
Computer science, mathematics, engineering and programming books, textbooks & lecture notes
College level textbooks.
LibreTexts : Click on Explore the Libraries for specific subjects.
Biology, Business, Chemistry, Engineering, Geosciences, Humanities, Mathematics, Medicine, Photosciences, Physics, Social Sciences, Statistics.
Social Studies Textbooks. CC-BY-NC-SA
NOBA : Provides modules covering the traditional scope of introductory psychology and related topics.
200 Free Textbooks curated from various sites.
Math : Algebra, Geometry, Statistics, Calculus
Variety of topics. Each book has individual creative commons license.
Statistics (3 Books)
OpenStax Textbooks : Math, Science, Social Studies, Humanities, Business & AP. CC-BY
Two formats: modules, which are like small "knowledge chunks," and collections, which are groups of modules structured into books or course notes, or for other uses. Our open license allows for free use and reuse of all our content.
CC BY-NC-SA 3.0
Course Site : Educators can use all or parts of books and courses.
Offers high school textbooks in US History, American Government, and Ancient Civilizations.
