Your students can open the textbook on day one, at no cost, on a device they already own. Peer-reviewed life sciences textbooks from OpenStax at Rice University are trusted by tens of thousands of high school and college instructors.
4 free online textbooks covering core subjects, from biology to anatomy and physiology
Free instructor resources like lecture slides, answer guides, and AP® lab manuals
Built to meet Title II accessibility requirements, so every student can benefit
"Thank you very much! It is my dream to go into [synthetic] biology. For that I need a great foundation in biology. Thank you!"
3 reasons life sciences instructors choose OpenStax:
Life sciences students must interpret complex systems, connect biological processes, and apply scientific reasoning.
OpenStax resources support this with clear explanations, high-quality illustrations, and real-world STEM connections.
Free, ready-to-use instructional materials that save you time and easily integrate into your course.
• Lecture slides and notes
• Answer guides
• Customization tools
• AP® lab manual
OpenStax Assignable creates a structured digital learning experience that brings auto-graded questions, LMS integration, and built-in feedback to your course.
Starting at $15 per student, per semester, and free for instructors.
Designed for majors, non-majors, and AP® students alike, our life sciences textbooks support instruction across core life sciences disciplines. Each textbook is:
Written by experts and classroom-tested
Aligned to typical course standards
Available online for free and low-cost in print
Continuously updated to reflect current research
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Watch a quick walkthrough of how Assignable works from an educator's perspective. See how easy it is to create, assign, and track student progress.
Tell us a bit about yourself, and we'll share information on how OpenStax life sciences resources can support your students, from classroom to careers.
Welcome email with tips and tricks
Instant access to our free online resources
Continuous support from our team
Our free online, openly licensed textbooks help students grasp complex concepts, interpret scientific visuals, and engage deeply with coursework.
Get started with OpenStax life sciencesAdvanced Placement® and AP® are trademarks registered and/or owned by the College Board, which was not involved in the production of these resources.