The document summarizes the goals and operations of the OAPEN Library, an open access digital library of academic books. It discusses why starting an open access library is important given declining print book sales and rising serial costs. It also outlines how the library uses the XTF platform, partners with aggregators and libraries, and measures over 400,000 downloads annually to enhance the discoverability and usage of academic books. Future plans include expanding the number of publisher partners and ensuring long-term preservation of the collection.