Christiane Gruber is a professor of Islamic art in the Department of the History of Art at the University of Michigan, Ann Arbor, as well as the founding director of Khamseen: Islamic Art History Online. Her work explores medieval to contemporary Islamic art, especially figural representation, depictions of the Prophet Muhammad, manuscripts and book arts, architecture, and modern visual and material cultures. Gruber’s recent publications include The Praiseworthy One: The Prophet Muhammad in Islamic Texts and Images (Indiana University Press, 2019) and an edited volume The Image Debate: Figural Representation in Islam and Across the World (Gingko and University of Chicago Press, 2019). Contact: Department of the History of Art, University of Michigan, 110 Tappan Hall, 855 S. University Ave., Ann Arbor, MI 48109, USA.