Thomas Christiano is Professor of Philosophy and Law at the University of Arizona. He is also the co-director of the Rogers Program in Law and Society in the College of Law. He has been a fellow at the National Humanities Center, a visiting fellow of All Souls College, Oxford, and a visiting fellow in the Research School of the Social Sciences at the Australian National University. He has published widely in the areas of moral and political philosophy and is the author of The Constitution of Equality: Democratic Authority and Its Limits (2008) and The Rule of the Many: Fundamental Issues in Democratic Theory (1996). He is currently finishing a book on the foundations of equality. John Christman is Associate Professor of Philosophy, Political Science, and Women's Studies at Pennsylvania State University, where he specializes in contemporary social and political philosophy. He is the author of The Myth of Property (1994), Social and Political Philosophy: A Contemporary Introduction (2002), and The Politics of Persons: Individual Autonomy and Socio-historical Selves (2009).Christiano, Thomas is the author of 'Contemporary Debates in Political Philosophy', published 2009 under ISBN 9781405133227 and ISBN 1405133228.