I teach and write on medieval art and material and visual culture across the greater Mediterranean, Eurasia, and the Indian Ocean. My research is broadly concerned with the ways in which objects, materials, technologies, and artistic practices moved across geographic, cultural, and religious boundaries during the Middle Ages and beyond. I am currently researching a book on the history, place, and practice of “images not made by human hands” (acheiropoieta images) in the pre-modern world, and another which centers on the sentiment of Hope as a category of artistic creativity. I am the co-editor of the book series Art/Work which is set to narrate a new history of art founded in the study of objects, materials, and technology. I am the author of The Bronze Object in the Middle Ages (2016), Die Hildesheimer Avantgarde: Kunst und kolonialismus im mittelalterlichen Deutschland (2023), Art and Frontier: The Black Sea in the Global Middle Ages (2027). I am also the curator of the exhibition Agents of Faith: Votive Objects in Time and Place (2018).