Professor Gerhard Bowering (Baccalaureate, Deutsches Gymnasium Wurzburg; Ph.L., Philosophische Hochschule Pullach; Diploma, Panjab University; Th.L., Montreal; Ph.D., McGill University) has been Professor of Religious Studies in Islamic Studies since 1984. He taught previously at the University of Pennsylvania and has been a visiting professor at the University of Innsbruck, Princeton University, and the Institute for Advanced Study at Princeton. He has published Mystical Vision of Existence in Classical Islam: The Qur’anic Hermeneutics of the Sufi Sahl at-Tustari (d. 283/896), The Minor Qur’an Commentay of al-Sulami (Ziyadat haqa’iq al-tafsir), Beirut 1995, 2nd ed. 1997, as well as numerous articles, including those in the Encyclopaedia of Islam, the Encyclopedia of the Qur’an, and the Encyclopaedia Iranica. Work in progress includes the following books: Islam and Christianity: the Inner Dymanics of Two Cultures of Belief, Notre Dame University Press 2007; and The Dreams and Labors of a Central Asian Muslim Mystic. He was the recipient of a Guggenheim Fellowship (2005-2006) and fellowships from the Institute for the Advanced Study, Princeton (1992 and 2006). In 2004-2005 he gave the Erasmus Lectures at Notre Dame.[curriculum vitae]

Professor Frank Griffel (University Göttingen, Damascus University, M.A. Free University Berlin, Dr. phil. Free University Berlin) teaches courses on Islamic theology and focuses amongst others on developments in contemporary Muslim thought. He was previously research fellow at the Orient Institute of the Deutsche Morgenländische Gesellschaft in Beirut, Lebanon. He is author of Apostasy and Tolerance in Islam: The Development that led to al-Ghazali’s Condemnation of Peripatetic Philosophy (in German) as well as of numerous articles in academic journals, collective works, and encyclopedias. In 2003–04, he was Mellon Fellow at the Institute for Advanced Study in Princeton. His current research includes a book-length study on the influential Muslim theologian al-Ghazali (d. 1111).[curriculum vitae]