Peter Dobkin Hall was an active and long-time ARNOVA member, winner of the organization’s 2008 Award for Distinguished Achievement in Nonprofit and Voluntary Action Research, and one of the most influential historians of the nonprofit sector of the last half-century. This prize will honor Hall’s memory by celebrating the published book that has made the most significant scholarly contribution to our understanding of the history of philanthropy. For purposes of the prize, “philanthropy” will be defined in broad ARNOVA terms to include the history of nonprofit organizations, civil society, and philanthropy.