Funders typically pursue collaboration because they can bring expertise, relationships, and money together in a way that will produce results for society beyond the reach and capacity of any single donor. Much has been written to offer guidance to donors seeking whether and how to collaborate most effectively and efficiently. This report developed by The Bridgespan Group, is a bibliography review of the more than 125 pieces of literature on funder collaboration – including academic research papers, practitioner blogs, and published articles and reports, as well as syntheses of field-specific research – to support readers eager to skim the research and practice before diving in more deeply.