Michael Freeden's books include The New Liberalism: An Ideology of Social Reform (Oxford, 1978); Liberalism Divided (Oxford, 1986); Rights (Milton Keynes, 1991); Ideologies and Political Theory: A Conceptual Approach (Oxford, 1996); Ideology: A Very Short Introduction (Oxford, 2003); Liberal Languages: Ideological Imaginations and 20th Century Progressive Thought (Princeton, 2005); The Meaning of Ideology: Cross-Disciplinary Perspectives (ed.) (London, 2007). He is the founder editor of the Journal of Political Ideologies. He is Emeritus Professor of Politics at the University of Oxford and Honorary Professor in Political Ideology at the University of Nottingham.; Lyman Tower Sargent has been a visiting professor and fellow at universities in New Zealand and the UK. He is the author or editor of a number of books on ideologies, American political thought, and utopianism. He is the recipient of the Distinguished Scholar Award of both the Society for Utopian Studies and the Communal Studies Association. The Society for Utopian Studies has named this award the Lyman Tower Sargent Distinguished Scholar Award. He is Professor Emeritus of Political Science at the University of Missouri-St. Louis.; Marc Stears is the author of Demanding Democracy: American Radicals in Search of a New Politics (Princeton, 2010) and Progressives, Pluralists and the Problems of the State (Oxford, 2002), as well as the joint editor of Political Philosophy versus History? (Cambridge, 2012), Liberalism as Ideology (Oxford, 2012) and Political Theory: Methods and Approaches (Oxford, 2008). His own research concentrates on ideologies of democratic radicalism and social reform, especially in United States and Britain. He is Professor of Political Theory at the University of Oxford and Fellow of University College, Oxford.