Islands are not just geographical units or physical facts; their importance and significance arise from the human activities associated with them. The maritime routes of sailing ships, the victualling requirements of their sailors, and the strategic demands of seaborne empires in the age of sail - as well as their intrinsic value as sources of rare commodities - meant that islands across the globe played prominent parts in imperial consolidation and expansion. This volume examines the various ways in which islands (and groups of islands) contributed to the establishment, extension, and maintenance of the British Empire in the age of sail. Thematically related chapters explore the geographical, topographical, economic, and social diversity of the islands that comprised a large component of the British Empire in an era of rapid and significant expansion.