Patron driven acquisitions for eBooks is not a new concept but interest in it is growing thanks to broader adoption of eBooks in libraries and patron expectations, driven in part by consumer experience. But librarians often hear of “budget busting” and other experiences gone badly. Just what are the rewards and risks of the patron driven approach, and are there best practices? In this session we’ll provide an overview of concepts and issues from the librarian, patron, and vendor viewpoints and hear actual case studies from librarians who are planning or have implemented patron driven programs, both successful and unsuccessful. LYRASIS’ Program Director for East Region Services and Shared eBook Collections Librarian Timothy Cherubini leads the discussion, with contributions from several librarians from the field on their patron driven acquisition plans and experiences.