Peter Martin Day is Emeritus Professor of Archaeological Materials, University of Sheffield, and Research Associate, Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Athens. He has a BA (Hons.) in Archaeology (University of Southampton, 1982) and a Ph.D. from the University of Cambridge (1991). From 1984–1986 he was a Fellow in Ceramic Petrography at the Fitch Laboratory, Athens, and from 1991–1992 a Postdoctoral Researcher at NCSR Demokritos and the University of Cambridge. From 1994–2020, he taught and researched in the Department of Archaeology at the University of Sheffield. He specializes in analytical approaches to archaeological ceramic assemblages, integrating macroscopic, microscopic, and chemical techniques. His research examines questions of production, exchange, technological practice, and identity in different contexts, focusing on the Neolithic, Bronze Age, and early Medieval periods of the Mediterranean. Currently, he leads both archaeological and ethnographic projects examining tradition, technological change, and transmission in the ceramic material culture of displaced and mobile populations.