For more than a decade, the Department of Mathematics and Statistics at Sam Houston State University has championed the usage of Open Education Resources (OER) or free open textbooks in their courses. Open textbooks are textbooks that have been published, and licensed to be freely used, adapted and distributed. A large number of these books have been reviewed by faculty from a variety of colleges and universities to assess their quality. In particular, the NSF-funded American Institute of Mathematics maintains a list of open textbooks suitable for use in traditional university courses. These books can be downloaded for no cost, or printed at low cost.
https://www.itemonline.com/news/local_news/sam-houston-state-leading-the-way-in-free-textbook-adoption/article_3af2e756-a873-5506-ad45-824829277d73.html
