Cultural encounters form a dominant theme in the study of Iron Age Europe. This was particularly acute in regions where urbanising Mediterranean civilisations came into contact with ‘barbarian’ worlds. This volume presents preliminary work from the ENTRANS Project, which explores the nature and impact of such encounters in south east Europe, alongside a series of papers on analogous European regions. A range of theoretical perspectives and methodological approaches are offered in an effort to promote dialogue around these central issues in European protohistory.