This book, although short in terms of number of pages, is nevertheless extremely rich and amazingly eloquent in its presentation and explanations of Islam, from the life of Muhammad, to the Quran, to Islamic teachings and philosophy, and ending with a brief introduction to Sufism (Mysticism).
This book highly builds on the chapter that was dedicated to Islam in Huston Smith's The World's Religions. But Mr. Smith, after extracting that chapter and making a separate book out of it, adds to its contents discussions that relate to current world events such as the New York and Washington events in September 2001. He also adds many useful discussions regarding misconceptions about Islamic teachings like the issue of Women, Jihad, Polygamy, and many other issues that should highly interest any reader who seeks basic - but strong - foundations in Islamic Theology and Philosophy.
The bibliography and the "suggestions for further reading" part at the end of book is extremely helpful for anyone who persues an academic background in Islamic Studies.
This book will no doubt start to appear in college courses that cover the issue of Islam as a required reading assignment.
All in all, an excellent and a highly recommended book that is considered a masterpiece in the field of Comparative Religion Scholarship.