Scholarly, peer-reviewed open access books in education, humanities, and social sciences. The books are free to access and share but cannot be adapted or modified without permission.
From Rice University, OpenStax includes books and course notes. Their open licence allows for free use, sharing and creating derivative works of all the content.
Curated from university and college open-access institutional repositories, The Teaching Commons offers open-access textbooks, course materials, lesson plans, multimedia, lectures, k-12 materials, and more.