This updated version of Islam: The Straight Path includes a new Epilogue by John Esposito in which he addresses the impact 9/11 and its aftermath have had on both the Muslim and non-Muslim world, discussing Islam's relationship to democracy and modernity and focusing more sharply on the origins and growth of extremism and terrorism in the name of Islam. This exceptionally successful survey text introduces the faith, belief, and practice of Islam from its earliest origins up to its contemporary resurgence. Esposito, an internationally renowned expert on Islam, traces the development of this dynamic faith and its impact on world history and politics, discussing the formation of Islamic belief and practice and chronicling the struggle of Muslims to define and adhere to their Islamic way of life. Lucidly written and expansive in scope, Islam: The Straight Path provides keen insight into one of the world's least understood religions and is ideally suited for use in courses on Islam, comparative religions, and Middle Eastern history and culture.