Daniël van Helden is a doctoral student at the University of Leicester, UK. His research focuses on the theory, method and nature of archaeological thinking, specifically the concept of identity, as well as the potential of Fuzzy Set Theory and ontological database approaches for archaeology.
Robert Witcher is Associate Professor of Archaeology at Durham University, UK, and the editor of the world archaeology journal Antiquity. His research interests include landscape archaeology with a particular focus on the pre-Roman and Roman periods in Italy and the Mediterranean, where he has explored aspects of ancient settlement, agriculture and demography.