John Greenwood is professor in philosophy and psychology at the City University of New York Graduate Center. His primary research is in the history and philosophy of social and psychological science. He holds an M.A. from Edinburgh University and a D.Phil. in philosophy from Oxford University. He is associate editor of the Journal for the Theory of Social Behaviour and president-elect of the Society for the History of Psychology (Division 26 of the American Psychological Association). He has edited two collections and authored five books, including The Disappearance of the Social in American Social Psychology and A Conceptual History of Psychology: Exploring the Tangled Web.