Open Educational Resources (OERs) 'are any type of educational materials that are in the public domain or introduced with an open license. The nature of these open materials means that anyone can legally and freely copy, use, adapt and re-share them' (UNESCO 2017).
University textbooks can be expensive for students to purchase, and Open Educational Resources (OER) might be part of the solution. The Hewlett Foundation defines open educational resources as “high-quality teaching, learning, and research materials that are free for people everywhere to use and repurpose.” They are digital, openly-licensed textbooks made available for free online, potentially saving students hundreds of dollars each year.