This document discusses open educational resources (OER) as an alternative to traditional textbooks. It notes that the textbook market is dominated by a handful of major publishers, leading to high costs for students. On average, students spend over $1,200 per year on books and supplies. This has resulted in many students choosing not to purchase required textbooks or purchasing older editions. The document introduces OER as free and openly licensed educational materials that can be retained, reused, revised, remixed and redistributed. It provides examples of major OER initiatives from organizations like MIT, the OER Commons and OpenStax. The presenter advocates for OER as a way to reduce costs and ensure students have access to learning materials.