BCcampus Open Textbooks
A collection of open textbooks curated by British Columbia Open Textbook Project.
"OpenStax College offers free textbooks that meet scope and sequence requirements for most courses. These are peer-reviewed texts written by professional content developers."
Open Textbook Library
"A catalog of open access textbooks to be reviewed by faculty members, made available by the University of Minnesota's College of Education and Human Development. All textbooks in this catalog are openly licensed, complete, and available in print at very little cost."
Open SUNY Textbooks
"Open access textbook publishing initiative established by State University of New York libraries and supported by SUNY Innovative Instruction Technology Grants. This initiative publishes high-quality, cost-effective course resources by engaging faculty as authors and peer-reviewers, and libraries as publishing service and infrastructure.