Professor Walter W. Powell is Professor of Education, Sociology, Organizational Behavior, and Management Science and Engineering, at Stanford University, and Marc and Laura Andreessen Faculty Co-director of the Stanford Center on Philanthropy and Civil Society. He is also visiting Centennial Professor of Sociology at the London School of Economics and Political Science. He is best known for his work in the areas of organization theory, economic sociology, and the sociology of science. His research focuses on the processes through which knowledge is transferred across organizations, and the role of networks in facilitating or hindering innovation and of institutions in codifying ideas. He is the author or editor of Books: The Culture and Commerce of Publishing, with Lewis Coser and Charles Kadushin (1982); Getting Into Print: The Decision-Making Process in Scholarly Publishing (1985); The New Institutionalism in Organizational Analysis, with Paul DiMaggio (1991); Private Action and the Public Good, with Elisabeth Clemens (1997); The Nonprofit Sector, with Richard Steinberg (2006); The Emergence of Organizations and Markets, with John Padgett (2012). He is presently working on the third edition of The Nonprofit Sector, with his Stanford colleague Patricia Bromley. Powell is the author of more than 100 articles, several of which are among the most cited articles ever in the social sciences, and have received numerous prizes. He received his Ph.D. in Sociology from SUNY – Stony Brook, and was previously a faculty member at Yale, MIT, and the University of Arizona. He holds honorary degrees from Uppsala University, Copenhagen Business School, and the Helsinki School of Economics, and is a foreign member of the Swedish Royal Academy of Science. He has taught as a visitor at the University of Cambridge, the University of Oxford, Sciences Po, Uppsala University, Hebrew University of Jerusalem, and many other universities in Europe and Asia.