Chantal Mouffe is the Professor of Political Theory at the Centre for the Study of Democracy at the University of Westminster. Her books include Gramsci and Marxist Theory, Hegemony and Socialist Strategy (with Ernesto Laclau), Dimensions of Radical Democracy, The Return of the Political, The Democratic Paradox, On the Political, Agonistics, and Podemos: In the Name of the People (with íñigo Errejón). Bryan S. Turner is professor of Sociology in the Department of Sociology at Cambridge University in England and a professorial fellow of Fitzwilliam College, Cambridge. His previous publications include The Body and Society (1984), Medical Power and Social Knowledge (1987) and Regulating Bodies (1992). He is the joint editor with Mike Featherstone of the journal Body & Society. He teaches medical sociology and the sociology of human rights at Cambridge. He is currently editing the Cambridge Dictionary of Sociology (with Craig Calhoun and Chris Rojek) and the International Handbook of Sociology. He is also doing research on rights, learning disabilities, and social inclusion. Slavoj Zizek is a Slovenian philosopher and cultural critic. He is a professor at the European Graduate School, International Director of the Birkbeck Institute for the Humanities, Birkbeck College, University of London, and a senior researcher at the Institute of Sociology, University of Ljubljana, Slovenia. His books include Living in the End Times, First as Tragedy, Then as Farce, In Defense of Lost Causes, four volumes of the Essential Zizek, and many more.