Erik Thunø is Professor of Medieval Art. His research focuses on early medieval European art, particularly reliquaries, icons, and monumental imagery in Rome, but he has also worked on thirteenth-century Rome, European altar frontals, and miracle-working images of the Late Middle Ages and Renaissance. A second area of focus is medieval art of the South Caucasus region (Armenia and Georgia) with particular emphasis on cross-cultural features and historiography. By linking his objects of research with their viewers, materials, inscribed texts, and the rituals surrounding them, Professor Thunø is primarily concerned with the dynamics by which medieval visual culture made the visible world intersect with its invisible counterpart.