Herbert L. Kessler. One of the most prestigious and innovative medievalists of recent decades, he is Professor of Medieval Art at Johns Hopkins University, a member of the Medieval Academy of America since 1991 and a member of the American Academy of Arts and Sciences since 1995. Among his numerous publications Noteworthy among the latest are Rome 1300: On the Path of the Pilgrim (with Johanna Zacharias) and Spiritual Seeing: Picturing God's Invisibility in Medieval Art.