Helmut K. Anheier is dean of the Hertie School of Governance, Berlin, academic director of the Center for Social Investment at Heidelberg University, and professor of public policy and social welfare at UCLA. He was previously a Centennial Professor at the London School of Economics, and a researcher at Johns Hopkins University. His publications include Creative Philanthropy, written with Diana Leat (Routledge, 2006) and Nonprofit Organizations (Routledge, 2010). David C. Hammack is Hiram C. Haydn Professor of History at Case Western Reserve University, where he is also a leader of the Faculty Council of the Mandel Center for Nonprofit Organizations. He is past president of the Association for Research on Nonprofit Organizations and Voluntary Action. His books include Globalization, Philanthropy, and Civil Society, edited with Steven Heydemann (Indiana, 2009) and Making the Nonprofit Sector in the United States (Indiana, 2000).