This document summarizes an OER librarian's presentation on open educational resources (OER) and the role of librarians in supporting OER. It defines OER according to UNESCO and the Hewlett Foundation. It discusses the 5R framework for open licensing and provides examples of OER initiatives in higher education and K-12. It outlines challenges of adopting OER but also how librarians can help by providing expertise in copyright, finding and curating open resources, and supporting faculty and teachers. The presentation argues that OER can help address the high costs of educational materials and barriers to student success.