This document provides an overview of open textbooks and the BC Open Textbook Project. It discusses the high costs of traditional textbooks and how open textbooks can help by being available online for free or at low cost. The project aims to increase the use of open textbooks in BC by facilitating their creation and adoption. Faculty are involved in reviewing, adapting and creating new open textbooks through sprints and other activities. Initial results show the project has helped save students over half a million dollars in textbook costs so far.