This document discusses the past, present, and future of open education. It notes that the cost of textbooks has risen dramatically compared to overall consumer prices, limiting students' access to education. Open educational resources (OER) provide a free and open alternative to traditional textbooks. Their use is growing, though traditional publishers are also entering the space. Moving forward, the document argues that open education must align with open values of free reuse and remixing of content to maximize benefits for students.