By the late Bronze Age the Irish had become masters in metalworking anf the range of objects produced was in stark contrast to those of the earlie Bronze Age. This study presents a comprehensive analysis and reconstruction of late Bronze Age metalworking practices through artefactual evidence and also experimental work and ethnography. Simon O Faolain's research draws on evidence of raw metal/ingots, clay crucible remains, moulds, wooden templates, metalworking equipment as well as the finished objects themselves, and archaeological evience for sites associated with metal production or associated ritual activities. (A catalogue of metalworking sites is given at the back.) Particular attention is paid to the production of late Bronze Age swords. All the evidence is then summarised and placed within the context of metalworking practices, technology, the organisation of production and late Bronze Age society,