Angelika Neuwirth is professor of Arabic literature at the Free University of Berlin. She has published extensively on the Qur'ān and on contemporary Arabic literature. Nicolai Sinai is a researcher at the Corpus Coranicum project of the Berlin-Brandenburg Academy of Sciences and Humanities. He is the author of a recent monograph on the Qur'ān and early Qur'ānic exegesis. Michael Marx is currently administrative director of Corpus Coranicum. His main fields of interest are the Qur'ān, its transmission history, and interreligious polemics in Islamic culture.