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Open Educational Resources are educational materials and resources offered freely and openly for anyone to use. In addition to this guide, we recommend you also check out a related OER site, Textbook Affordability at UMD.
Some publishers are making their resources freely available (for a limited time) in response to COVID-19 related closures. Please note that not all of these resources are open, as they continue to have copyright restrictions and/or will go behind a paywall at some point.