Roald Dijkstra, Ph.D. (2014), Radboud University, is postdoctoral researcher and lecturer at that university. His thesis (Portraying Witnesses. The apostles in early Christian art and poetry) will be published in Brill's Vigiliae Christianae Supplements Series. Sanne van Poppel, Ph. D. (2014), Radboud University, is the Assistant Head Librarian of KU Leuven Kulak. She received her PhD from Radboud University Nijmegen (Urbs et Augustus. The City of Rome in Politics and Representations of Power during the Constantinian Dynasty (306-361)).Daniëlle Slootjes, Ph.D. (2004), University of North Carolina at Chapel Hill, is Assistant Professor of Ancient History at the Radboud University Nijmegen. Her research focuses on the period of Late Antiquity. She is currently working on an extensive project on urban crowd control in the Roman world. Contributors to this volume are Jan Willem Drijvers, Christian Gnilka, Hervé Inglebert, Gitte Lønstrup Dal Santo, David Potter, Sofie Remijsen, Josef Rist, Shaun Tougher and Giusto Traina.