Harry Fokkens studied Humans Geography at the Free University in Amsterdam and Prehistoric Archaeology at the State University in Groningen. He works in Leiden since 1982 and succeeded Leendert Louwe Kooijmans in the chair of European Prehistory in 2005. In the past thirty years his research focussed on the Bronze Age and Iron Age in Northwest Europe. For more then twenty years he excavated Bronze and Iron Age settlements and cemeteries around the town of Oss (Netherlands). Franco Nicolis studied Ancient History and Prehistory at the University of Bologna. His PhD thesis at the University of Pisa was focused on the Bell Beaker phenomenon in Nortern Italy. Since 1991 he is working as archaeologist at the Archaeological Heritage Office of the Autonomous Province of Trento, Italy.