The scholarly publishing crisis is by no means a new concept. The rising cost of journals has been pricing libraries out of subscriptions for years now. This crunch on libraries’ acquisitions budgets has led many people to rethink the traditional publishing model. Enter the open access (OA) movement. Use of the term “open access” dates back almost a decade, but the field continues to evolve. In this new work, Walt Crawford organizes a clear and succinct introduction to and overview of OA, covering concepts related to OA journals, publishing, and repositories. Now retired, Crawford was a senior analyst at Research Libraries Group, Inc. and most recently served as Editorial Director of the Library Leadership Network. He is the creator, writer, and publisher of Cites & Insights.