Although its beginnings can be traced back to the late 19th century, the interfaith movement has only recently begun to attract mainstream attention, with governments, religious leaders and grassroots activists around the world increasingly turning to interfaith dialogue and collective action to address the challenges posed and explore the opportunities presented by religious diversity in a globalising world. This volume explores the history and development of the interfaith movement by engaging with new theoretical perspectives and a diverse range of case studies from around the world. The first book to bring together experts in the fields of religion, politics and social movement theory to offer an in-depth social analysis of the interfaith movement, it not only sheds new light on the movement itself, but challenges the longstanding academic division of labour that confines 'religious' and 'social' movements to separate spheres of inquiry.