In common with other volumes in the Thames Through Time series, this account of the Thames Valley in the millennium and a half before the Roman conquest seeks to examine change in human society from a thematic point of view. The geographical and chronological framework for this volume is established in Chapters 1 and 2, but thereafter we have tried to get away from the traditional, somewhat artificial pigeon-holes of 'periods' 'ages' 'eras' and 'phases'...