W4EDUCATION
OpenStax: free digital textbooks
United States
Free online and PDF textbooks for high school and college learning.
Rice University’s OpenStax supplies digital textbooks and associated learning resources. Print editions and optional courseware can have costs; do not confuse them with the free textbooks.
Who qualifies
Digital textbook access is public; some features and select titles require an account.
How to access it
Select a subject and book, then choose its web or PDF edition. Check the title and edition required by your course.
Cost or fee
Digital textbooks are free. Print and optional courseware may cost extra.