Universal Open Textbook Initiative

The Universal Open Textbook Initiative provides free textbooks for college, university, and K-12 education. You can download 79 open educational resources (OER) instantly, with no registration required. Textbooks are available in English, Spanish, Arabic, Chinese, and Polish. Subjects covered include Calculus, Physics, Chemistry, Biology, Business, Nursing, and Computer Science. This initiative helps you save between $100-$400 per textbook. All resources are Creative Commons licensed or similar, making them adaptable for teaching purposes.