An open-source book is one that is available over an open-source license, meaning that it can be freely used, modified, or shared. Examples of open-source libraries are eCampusOntario’s Open Library, BCcampus’ online open textbook collection, and the University of Minnesota’s Open Textbook Library. Such systems would eliminate the cost of production and procurement for faculty and students, respectively, so that course requirements from the former are maintained while the educational experiences of the latter are not hindered. By advocating for the widespread adoption of open-source textbooks in universities, we’d be eliminating the need for students to scour the internet to find their educational materials, and we’d keep them from facing a terrifying bill at the bookstore.
https://thevarsity.ca/2021/10/31/opinion-textbooks-should-be-free/