Nathaniel Prottas is the Frick's Samuel H. Kress Interpretive Fellow for 2013-14 and a doctoral candidate at the University of Pennsylvania. His specialty is late fifteenth- and early sixteenth-century Netherlandish panel painting, and his work focuses on the new visual formulas used by artists at the turn of the sixteenth century. His research has been supported by the Deutscher Akademischer Austausch Dienst, the Metropolitan Museum of Art, and the Fulbright Commission. Prottas is the recipient of the 2007 Award for Outstanding Teaching by a Graduate Student at the University of Pennsylvania. At the Frick, he will prepare and offer gallery courses and programs.His work has been published in The Journal of the Philosophy of Photography and Discourse: Journal for Theoretical Studies in Media and Culture. He holds a B.A. from the University of Chicago and an M.A. from University College London.