A comprehensive study of the defences of prehistoric hillforts in southern Britain. The first volume examines the various forms and construction of ramparts and entrances, the dating of hillforts and their associated pottery, and the military and economic background to hillfort use in prehistory. Volume two presents the evidence from almost 150 individual sites excavated up to 1979, whilst the final volume contains appendices with results from excavations at Maiden Castle, Dorset, evidence from radiocarbon dating, and figures and illustrations.