In Islam, Esposito provides a succinct, up-to-date survey of the Islamic experience, an introduction to the faith, belief, and practice of Islam from its origins to its contemporary resurgence. He traces the emergence and development of this dynamic faith and its impact on world history and politics. He discusses the formation of Islamic belief and practice (law, theology, philosophy, and mysticism), chronicling the struggle of Muslims to define and adhere to their Islamic way of life.

Equally important is the essential information Esposito provides on the contemporary world of Islam, from Muslim responses to the challenges of colonialism and modernization to the reassertion of Islam in politics and society. This third edition has been updated throughout and is enhanced by new material that more accurately reflects the true diversity of Muslim cultures.