For many in the English-speaking world, Islam remains a mysterious religion. What is Islam in the first place? Does it mean "peace," or does it mean "submission"? Can it mean both? What is jihad? Sharia? Hadith? Who is Allah? What is a caliph, caliphate, or infidel?

In this compact volume, Ayman S. Ibrahim provides explanations for more than one hundred important Islamic concepts and terms. Each term is described based on original Muslim sources, mainly found in Arabic, as well as ample scholarly studies.

"In this thoughtful work, Ibrahim opens windows into our Muslim neighbors' worldview by clearly explaining Islam's key concepts and vocabulary. An excellent resource for healthy dialogue."
--George Bristow, senior research fellow, Institute for the Study of Religion in the Middle East (ISRME)

"An invaluable resource. For those working or serving among Muslims, this book will be the go-to reference to better understand Islamic concepts or words."
--Carol B. Ghattas, author and speaker with over thirty years in cross-cultural ministry among Muslims

"Ibrahim has provided a work that will be kept close, not only by those who are initially seeking to understand Islam and its adherents but also by any who find themselves needing a clear definition or explanation of a term or concept related to Islam. An exceptional resource!"
--George H. Martin, professor of Christian missions and world religions, editor of The Southern Baptist Journal of Missions and Evangelism, The Southern Baptist Theological Seminary

"A valuable book, incorporating up-to-date scholarship in an easy-to-read style. Ibrahim has provided a versatile volume that promises to be frequently consulted."
--Duane Alexander Miller, professor of Old Testament, Protestant Faculty of Theology at Madrid (UEBE)

"In his latest, aptly named book, Ibrahim brings welcome clarity to this influential world religion. The entire itinerary, from Islamic texts and history through jurisprudence to Islamic movements, will considerably enrich general readers."
--Ant Greenham, coeditor of Muslim Conversions to Christ: A Critique of Insider Movements in Islamic Contexts

"This book will be a welcome companion to all who desire to better understand the faith of their Muslim friends. I cannot recommend it strongly enough."
--J. Keith McKinley, associate professor of Christian missions, director of the Bevin Center for Missions Mobilization, The Southern Baptist Theological Seminary