The first monograph on the New York based artists’ collaborative known for its socio-political art practice. Organised by former group members in keeping with the methods and aims Group Material employed, the book charts the origins, processes, developments, projects and contexts of the group’s activities, and draws heavily from Group Material’s archive, including original documents, photographs, drawings, correspondence, artefacts, anecdotal information and texts. Group Material created 45 projects during its period of activities (1979–1996), each represented though installation photography and information from original proposals, exhibition statements, press releases, responses, etc. One emblematic exhibition project, AIDS Timeline, is examined in detail, from collected material and newly conducted interviews. Essays by Doug Ashford, Julie Ault, Sabrina Locks and Tim Rollins further illuminate the methods and principles of Group Material’s practice.