“In anticipation of worldwide Open Access Week, the Harvard Open Access Project is pleased to release version 1.0 of a guide to good practices for university open-access policies. Gathering together recommendations on drafting, adopting, and implementing OA policies, the guide is based on policies adopted at Harvard, Stanford, MIT, and a couple of dozen other institutions around the world. But it’s not limited to policies of this type and includes recommendations that should be useful to institutions taking other approaches. The guide is designed to evolve. As co-authors, we plan to revise and enlarge it over time, building on our own experience and the experience of colleagues elsewhere. We welcome suggestions. The guide deliberately refers to “good practices” rather than “best practices”. On many points, there are multiple, divergent good practices. Good practices are easier to identify than best practices. And there can be wider agreement on which practices are good than on which practices are best. The current version of the guide has the benefit of the advice of expert colleagues, and the endorsement of projects and organizations devoted to the spread of effective university OA policies. It has been written in consultation with Ellen Finnie Duranceau, Ada Emmett, Heather Joseph, Iryna Kuchma, and Alma Swan, and has already been endorsed by the Coalition of Open Access Policy Institutions (COAPI), Confederation of Open Access Repositories (COAR), Electronic Information for Libraries (EIFL), Enabling Open Scholarship (EOS), Harvard Open Access Project (HOAP), Open Access Scholarly Information Sourcebook (OASIS), Scholarly Publishing and Academic Resources Coalition (SPARC), and SPARC Europe.”