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Open Education Textbooks
Open Educational Resources (OER) are teaching and learning materials that you may freely use and reuse at no cost, and without needing to ask permission. Unlike copyrighted resources, OER have been authored or created by an individual or organization that chooses to retain few, if any, ownership rights.
Open Textbook Library
The Open Textbook Library provides a growing catalog of free, peer-reviewed, and openly-licensed textbooks.
Open-source, free textbooks that have been peer-reviewed. Sponsored by and produced by Rice University.
Milne Open Textbooks
A catalog of open textbooks authored and peer-reviewed by SUNY faculty and staff.
Lumen provides open courseware and course materials.
OpenEd - BC Campus
A collection of 285 open college textbooks from BC Campus.