The Open Education Librarian can help you get started by:
Licensed Ebooks found in the library Catalogue and Open textbooks online - what's the difference?
From time to time, instructors may decide to assign a licensed ebook as a textbook. While this can save students textbook fees, it can also be problematic!
If you are considering using a library ebook as a course textbook to provide shared access for your students, please consider the following:
"Open Education Resources (OERs)" by TRU Libraries is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Based on a work at http://open.bccampus.ca/bcoer-librarians/bcoer-guides/.