The author claims to be filling a gap in the scholarship on pilgrimages to Jerusalem in the period of the early Middle Ages (by which she means the period from 900 to the eve of the crusades in 1095). There is from the outset an awareness of the rich variety of pilgrimages in terms of distance, destination and motivation. The significance to contemporaries of the notion that Adam's tomb's was located in the same spot as Christ's is not wholly substantiated. What seems better established here is that prior to the Carolingian period Jerusalem was not thought to be at the centre of world, despite Adomnan's efforts, but was more seen as central in an ideal sense. Nevertheless, once pilgrims reached Jerusalem every detail of topography and physical geography set down in early guidebooks was seen as facilitating their access to the sources of salvation history and through these to the mysteries of the faith. The Carolingian policing of pilgrimages to Jerusalem was relatively easy, because pilgrims were few and were drawn from well-behaved elite classes. These people liked to visit other places on the way, and adore or remove relics which had been there since the earliest Christian centuries. The author's conviction is that around 1000 pilgrimage was to a large degree inspired by the fear of impending apocalypse. It is argued that millennial anxiety led to penitential mass pilgrimages as the land passage through central and Eastern Europe opened up, although the threat of violence on arrival in Palestine increased, which contributed to the arming of pilgrims even prior to the crusades. This work is more of an overview with a sampling of primary material than exhaustive research into the sources, but it is readable and well presented.