There are many benefits to using OER:
OER allow revising and remixing of content so that faculty can teach exactly what they want to teach and how they want to teach it.
OER remove price barriers, saving students money and making it possible for everyone to have their own copy of required course materials from the first day of class. No more waiting for delayed orders to arrive at the campus bookstore!
Several studies show that students and faculty who have used OER before believe that they are as good or better than commercial textbooks.
A Review of the Effectiveness & Perceptions of Open Education Resources as Compared to Textbooks
This video summarizes the available research synthesized in: Hilton, J. (2016) "Open education resources and college textbook choices: A review of research on efficacy and perceptions." Education Tech Research and Development, 64(4), 573-590.
See also the section titled Research on OER on our Further Reading page.