OpenStax

OpenStax digital textbooks are free on openstax.org and are available as downloadable PDFs, while printed copies are optional purchases. OpenStax is part of Rice University and publishes materials for college, high school, and K12 courses. [OpenStax](https://openstax.org/)

OpenStax textbooks are developed and reviewed by educators and are designed around the scope and sequence of typical introductory courses. That makes titles such as Biology 2e useful course texts, although instructors still need to check a book against their own syllabus. [OpenStax quality FAQ](https://help.openstax.org/s/article/Are-OpenStax-textbooks-the-same-quality-as-traditional-textbooks?language=en_US)

The online books support highlights, notes, study guides, and links to videos, animations, apps, and other resources, including examples in Biology 2e. OpenStax Assignable adds readings and assessments for selected titles rather than every book. [OpenStax interactive books FAQ](https://help.openstax.org/s/article/Are-the-online-books-interactive)

OpenStax provides course cartridges for Blackboard, Canvas, D2L Brightspace, and Moodle. Selected textbooks can also use OpenStax Assignable for readings and assessments inside an instructor's learning-management system. [OpenStax student resources](https://openstax.org/b2s-fall-24/)