Based on a ten year study that explores the historical, social and religious dimensions of Australia s megachurches, the book examines reasons why this experiential form of religion seems attractive to many Australians when many traditional mainstream religious institutions struggle to attract adherents. It evaluates the contribution of such churches to the lives of participants, the wider mission of Christianity and their role in Australian society. It also reflects on the future of the megachurches as they continue to change in order to maintain attendances and support their large staff and resource base, and addresses the question of how successful they are in preserving core Christian beliefs, practices and mission.