Guy Bois' study of late medieval Normandy is a work of many dimensions. It should be of particular interest to English readers because of the close historical associations of England with Normandy and because of the natural resemblances between these two countries, separated only by the English Channel. This study does not, however, cover the period of close political association but that of invasion and warfare, of destruction and pillage. Although Guy Bois' book follows through the movements of population, prices, rents and wages over two and a half centuries, it does not consist simply of the delineation of trends. The realities of the land and its occupants are fitted into this boarder scheme, their economic and social activities are described as well as the impact on them of the military campaigns. All this is based on a meticulous analysis of every type of documentation available, ranging from tax returns to ecclesiastical surveys, from chronicles to rentals.