Pim (Wilhelmus G. B. M) Valkenberg is an ordinary professor of religion and culture in the School of Theology and Religious Studies at The Catholic University of America in Washington, D.C. His most recent books are Renewing Islam by Service: A Christian View of Fethullah Gülen and the Hizmet Movement (CUA Press, 2015) and (with Dr. Anthony Cirelli) Nostra Aetate: Celebrating Fifty Years of the Catholic Church’s Dialogue with Jews and Muslims (CUA Press, 2016).