Roger S. Bagnall is Professor of Ancient History and Leon Levy Director, emeritus, at the Institute for the Study of the Ancient World, New York University, as well as Jay Professor of Greek and Latin and Professor of History, emeritus, at Columbia University. He is the director of the excavations at Amheida and a co-author of the accompanying volume An Oasis City (2015). He is a Corresponding Fellow of the British Academy. Gaëlle Tallet is Assistant Professor of Greek History at the Université de Limoges, and director of the El-Deir archaeological mission in Kharga. She is co-editor, with Thierry Sauzeau, of Mer et désert de l'Antiquité à nos jours: Approches croisées (2018).