Professor John Koch is a senior research fellow at the Centre for Advanced Welsh and Celtic Studies, University of Wales. His interests include the languages, literatures, and civilizations of the early Celtic peoples from prehistory through the early Middle Ages. His works have developed original ideas in such fields as the earliest Welsh poetry, the Mabinogi, Continental Celtic, Irish saga literature, St Patrick, the classical authors' descriptions of the ancient Celts, and Bronze Age and Iron Age archaeology. He is the author of groundbreaking volumes, such as The Gododdin of Aneirin and The Celtic Heroic Age , has co-authored major innovative works, such as The Inscriptions of Early Medieval Brittany , and has contributed widely to international volumes and journals. He is the co-editor of all three Celtic from the West volumes.