This volume of primary sources examines the centrality of migrants upon all sections of the economic and social spectrum, and tackles their importance to economy, society and culture, demonstrating that not only have they provided cheap labour, as in the case of the Irish, but also played a central role in the development of key sectors such as the restaurant trade, merchant banking and classical music production. The volume utilises a range of sources including official reports, archival material, personal accounts and trade journals. Accompanied by introductions and annotations written by the editor, this volume will be of great interest to students of British and World History.