Sebastian Guenther is Associate Professor of Arabic Language and Literature at the University of Toronto. His publications include “Praise to the book! Al-Jahiz and Ibn Qutayba on the excellence of the written word in Medieval Islam,” (in Jerusalem Studies of Arabic and Islam), “O people of the book! Come to a word common between you and us (Q 3:64): the ten commandments and the Qur'an” (in the Journal of Qur'anic Studies) and “Muhammad, the illiterate Prophet: an Islamic creed in the Qur'an and Qur'anic exegesis,” (Journal of Qur'anic Studies).