Later Prehistoric Settlement in Cornwall and the Isles of Scilly reports on the excavation between 1996 and 2014 of five later prehistoric and Roman period settlements. Three of the mainland sites – Killigrew, Nancemere and Higher Besore – are located in central Cornwall, near Truro, with the fourth, at Porthleven, situated on the south coast in west Cornwall. The fifth settlement, Porth Killier, is on the island of St Agnes on the Isles of Scilly. All the sites were multi-phased, revealing both similar and contrasting patterns of occupation stretching from the Bronze Age into the Iron Age and beyond. Despite having broadly comparable chronological sequences, there are considerable differences in both the tempo and intensity of occupation, and significant contrasts in practices associated with them. Significantly, all four mainland sequences culminate with an enclosed settlement in the Late Iron Age and especially during the Roman period, a time of significant economic and social change following the conquest. During this period there continued to be differences in the character of occupation. Notably two of the enclosures seem to have been strongly associated with industrial activities, including metalworking at Killigrew, suggesting that the working of iron may have been a controlled or ritualized activity undertaken within a dedicated space.The volume presents the results from each of the five settlement sites, before reviewing the key themes which have emerged from the investigations.