Covering everything from Adam to Zakariyyah, this concise reference guide is designed specifically for readers and students who wish to learn more about the world's fastest-growing religion. Fully illustrated, the book contains hundreds of alphabetically arranged entries which give succinct yet authoritative information on everything from the Qur'an and its origins to the role of Islam in the USA. It offers even-handed coverage of the different schools of belief, while featuring photographs, a timeline, and a guide to further reading.