This is one of the first academic books about Fethullah Gülen, a Turkish scholar and preacher, and the civic movement he inspired in Turkey and ultimately throughout the world. The movement is rooted in moderate Islam and is committed to educating youth, fostering interfaith and intercultural dialog, assisting the needy in society and contributing to global peace. Based on interview data and visits to Gülen-inspired institutions, the book describes the movement from a sociological perspective, especially through the lens of social movement theory. It is the first book, grounded in empirical methodology, to describe the movement to a Western audience. It will be of special interest to social scientists interested in religious movements, religious scholars seeking information on Islamic movements and the general public eager to discover a moderate Islam that promotes humanitarian projects.