From global missionizing among proselytic faiths to mass migration through religious diasporas, religion has traveled from one side of the world and back again. It continues to play a prominent role in shaping world politics and has been a vital force in the continued emergence, spread, and creation of a transnational civil society. Exploring how religious roots are shaping organizations that seek to aid people across political and geographic boundaries - 'service movements' - this book focuses on how religious movements establish structures to assist people with basic human needs such as food, clothing, shelter, education, and health. Examining a multitude of faith traditions with origins in different parts of the world, seven contributing chapters, with an introduction and conclusions by the senior author, offer a unique discussion of the intersections between religious transnationalism and social movements.