This book presents an engaging and accessible introduction to Christianity's relationship with other world religions, addressing the questions of why the reality, and vitality, of other religions has become a challenge, and showing how Christianity is equipped to deal with religious plurality at both the doctrinal and social level. Timely and accessible, this book tackles the question of why the reality, and vitality, of other religions has become a challenge for Christianity.The book makes a decisive contribution to debates about the clash between Islam and the West, arguing that the major threat to religious freedoms come from secularism, and that Islam and Christianity both have the resources to develop a vibrant and pluralist public square; one informed by intellectual rigor and debate; considers the wider issue of how modernity has defined 'religion', and provides a substantial critique of secular ways of controlling religions; shows how Christianity is very well suited to deal with religious plurality at the doctrinal and social level; and, addresses the core issues and describes the various answers that have been proposed in recent years - making it an ideal introduction to the field, and one which will stimulate ideas and discussions.