This volume covers the origins, historical development, and ideas of one of the largest and most influential Islamic movements in the world, the Guelen Hizmet Movement (GHM). Founded during the Cold War under the inspiration of M. Fethullah Guelen, the GHM expanded to over 130 countries by the first decade of the twenty first century. The movement's circumspect activism sheltered it from illiberal secular practices in Turkey and has guided it through the anxious post-Cold War process of globalization. This edited volume covers various characteristics of the movement from Guelen's unconventional oratory to his educational philosophy. In addition, the book covers Guelen's ideas on Islam and democracy and the GHM's indirect political engagement compared to the direct engagement of the Muslim Brotherhood. Other chapters in the book cover the role of women in the movement, the GHM's creation of an alternative public sphere for pious Muslims, and the tension this creation instills in light of Secularism Theory, which is analyzed comparatively with American religious pluralism. The last two chapters question the effectiveness of interfaith dialogue activities promoted by the movement's adherents. A concluding section seeks to synthesize this interdisciplinary scholarship in order to assess the GHM's overall gestalt as a social movement.