Wikipedia
Focus: encyclopedia, reference and research. Also in Research and Learning, like LibreTexts. Adds iOS and Android. Rated 4.8 (LibreTexts: 4.5).
Website
A non-profit library of free, openly licensed college textbooks.
Rating
4.5 / 5
Pricing
Free
Difficulty
Beginner
Works on
Web
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LibreTexts is a non-profit open education platform where educators create, customise and share textbooks and homework. Its libraries hold over 2,000 textbooks across subjects such as biology, business, chemistry, engineering, mathematics, physics, statistics, health sciences and the humanities, and chapters can be remixed into a custom text. It also runs ADAPT, a homework system with a shared bank of openly licensed questions. Students can read the books online without paying for a textbook.
College students and teachers looking for free textbooks.
People who prefer printed course books.
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Focus: public domain, art history and images. Also in Reading and Research, like LibreTexts. Rated 4.7 (LibreTexts: 4.5).
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