The late medieval eastern Mediterranean, before its incorporation into the Ottoman Empire in the sixteenth century, presents a complex and fragmented picture. The Ayyubid and Mamluk sultanates held sway over Egypt and Syria, Asia Minor was divided between a number of Turkish emirates, theAegean between a host of small Latin states, and the Byzantine Empire was only a fragment of its former size. This collection of thirteen original articles, by both established and younger scholars, seeks to find common themes that unite this disparate world. Focusing on religious identity, cultural exchange, commercial networks, and the construction of political legitimacy among Christians and Muslims inthe late Medieval eastern Mediterranean, they discuss and analyse the interaction between these religious cultures and trace processes of change and development within the individual societies. A detailed introduction provides a broad geopolitical context to the contributions and discusses at lengththe broad themes which unite the articles and which transcend traditional interpretations of the eastern Mediterranean in the later medieval period.