Why should we be tolerant? What does it mean to ‘live and let live’? What ought to be tolerated and what not? Toleration: A Critical Introduction is a comprehensive and accessible philo- sophical introduction to the theory and practice of toleration. The first part of the book clearly introduces and assesses the major theories of toleration through an exploration of accounts based on scepticism, value pluralism and the demands of reasonableness. Catriona McKinnon also draws on major liberal thinkers – from Locke and Mill to Rawls and Feinberg – in order to examine the relation between harm and toleration. In the second part of the book, McKinnon applies the theories of toleration to urgent contemporary problems such as female circumcision, the French head- scarves affair, artistic freedom, pornography and censorship, and Holocaust denial. Toleration: A Critical Introduction provides a solid theoretical base for the value of toleration, while considering the detail of challenges to toleration in practice. It is an ideal starting point for those coming to the topic for the first time, and for anyone interested in the challenges facing toleration today. Catriona McKinnon is Lecturer in Politics at the University of Reading. She is the author of Liberalism and the Defence of Political Constructivism (2002), and co-editor of The Culture of Toleration in Diverse Societies: Reasonable Tolerance (2003) and The Demands of Citizenship (2000). Toleration