Mark Letteney is an ancient historian and archaeologist working in the history of incarceration, book history, and the archaeology of military occupation. His first monograph, The Christianization of Knowledge in Late Antiquity, appeared in 2023 with Cambridge University Press, and his second book, Ancient Mediterranean Incarceration (co-authored with Matthew Larsen) is under contract with the University of California Press. He joined the Department of History in 2023.