In the eleventh and twelfth centuries the Normans had a formative influence on the development of states and societies in the British Isles, southern Italy and the Levant. Their achievements still resonate powerfully today, and represent a vital field of historical study. But how far did colonial elites define themselves as Norman, and to what extent were they categorized as such by others? This volume serves both to illustrate and to open up for fresh debate many of the salient themes concerning the Norman experience of diaspora and settlement. At the same time, it seeks to underscore how the dynamics, character and consequences of Norman expansion – and the connections, continuities and contrasts – can better be appreciated by taking the wider Norman world, or worlds, as the focus for collective study.