This volume examines the policy, law, and political theory of multiculturalism in the British context, exploring how they inform each other. It covers topics such as national identity, immigration, integration, the welfare state, gender, freedom of religion, and human rights. It provides a deeper understanding of contemporary British multiculturalism in its various aspects, inexorably leading back to fundamental questions regarding the structure and purpose of the British polity. It also explores the connections between multiculturalism and current events, including Brexit, renewed calls for Scottish independence, and the broader rise of populism in the West. This book was originally published as a special issue of , to which the editors have added a new concluding chapter.