This book provides a systematic and methodical overview of the Delian League founded by Athens in 478 BCE and surviving until its dissolution in 404 BCE after its defeat in the Peloponnesian War. It frames and analyses the League within the context of the global history of empires and includes chapters on all salient aspects of Athenian imperial power. It engages with subjects such as source traditions, geopolitical setting, history, economic and political power structures, Athenian relations with external rivals, imperial society and culture, historiography, as well as ancient and modern receptions of its imperial structures. Individual chapters provide a state-of-the-art discussion by recognised experts in the field, with an international cast of authors including scholars of all career stages. This collection will be an invaluable ressource for students and scholars interested in Classical Greece, Athenian history, and the history of empires.