D. J. Mattingly is Professor of Roman Archaeology at the University of Leicester. He has published widely on the archaeology of North Africa and the Sahara. V. Leitch is Publications Manager at the Society for Libyan Studies and has worked on excavations in Italy, Sicily, Tunisia and Libya. C. N. Duckworth is a Lecturer in Archaeological Materials Science at the University of Newcastle upon Tyne. She specialises in ancient pyrotechnology, particularly glass manufacture and recycling. A. Cuénod is an Honorary Visiting Fellow at the University of Leicester. Her research has centred on metal production and trade in the pre-Islamic Sahara. M. Sterry is a Postdoctoral Fellow at the University of Leicester, specialising in GIS analysis, remote sensing and landscape archaeology, particularly in the study of Saharan oases. F. Cole is an archaeologist, conservator and material culture expert. She has worked extensively in museums and excavations across north Africa, the Levant, Arabia, Latin America and Southeast Asia.