Professor Emeritus in the Graduate School of Philosophy and Theology of the College of St. Georgen in Frankfurt, Christian W. Troll, is a scholar of Islam and a key figure in Christian-Muslim relations. He studied philosophy and theology at the universities of Bonn and Tübingen before entering the Jesuit Order in 1963. He continued his education in Germany and then in England, where he studied at the School of Oriental and African Studies of the University of London and earned an B.A. with honors in Urdu literature and, in 1975, a Ph.D. in Islamic studies. He was ordained a Roman Catholic priest in 1971. Dr. Troll joined the faculty of Vidyajoti Institute of Religious Studies in New Delhi as a professor of Islamic studies in 1976 and, twelve years later, moved on to the Center for the Study of Islam and Christian-Muslim Relations in Birmingham as a senior lecturer. He was named professor of Islamic institutions at the Pontifical Oriental Institute in Rome in 1993. For the next eight years, he also gave a series of lectures as a guest professor at the University of Ilahiyat Fakültesi in Ankara. In 1991, he was appointed head of the Christian-Islamic Forum of the Catholic Academy in Berlin, and in 2001, Dr. Troll was named honorary professor at St. Georgen, a position he held until his recent retirement. A former member of the Commission for Religious Relations with Muslims of the Pontifical Council for Interreligious Dialogue, he is currently a member of the Sub-Commission on Interreligious Dialogue of the German Bishops’ Conference. In addition to papers published in academic journals, he is the editor of seven books, including an influential four-volume series of studies and commentaries, Islam in India (1982), Religion and Religious Education (1985), (with Syed Vahiduddin) Islamic Experiences in Contemporary Thought (1986), and Muslim Shrines in India: Their Character, History and Significance (1989, 2003, and 2004), and the author of four others, notably a pioneering study of the Islamic reformer and modernist, Sayyid Ahmad Khan: Reinterpretations of Muslim Theology (1978), and a primer directed mainly at Christians that encourages further reflection and learning, Muslims Ask, Christians Answer (2003 and 2005). This book forms the basis of an interactive homepage (see: http://www.answers-to-muslims.com) in four languages—German, English, Turkish, and Italian. In the summer of 2009, Orbis, Maryknoll/New York will publish his Dialogue and Difference: Clarity in Christian-Muslim Relations, which already has appeared in German, Italian, and Turkish.