"Extremist Shiites: The Ghulat Sects," is a book that tried to deal with some very serious issues, but no success was accomplished. For example, the author made reference to things that were said in the call for prayer in Iran, and how AyatoAllah Khomeni's name was used in it, along with the testimony of Allah being the only god. However, the source he used was published by the Iraqi government during the war with Iran, plus other issues that won't be absent from the careful reader, which lessen the book's credibility. Another downfall in the book was the author's misunderstanding of certain ideas, such as the Prophet and thirteen members His family being the cause of existence, which is an idea that was referred to in many Shi'it traditions that were collected by some very respected scholars, such as Mulla Muhammad Baqir Al-Majlissi in "Bihar Al-Anwar" and Shaykh Al-Kulayni in "Al-Kafi." Instead, the author makes it sound as if the "Shaykhis" are the only people who hold that belief. It must be admitted that Mr. Moosa has touched on some very interesting issues, and no matter how much praise he's given, it is not enough, but the beauty of some parts was ruined by the rushed conclusions he had made.

While this text may not completely satisfy critics from countries in which the Islamic perspective is dominant, for scholars and students from the West this volume is a rich resource, and is perhaps the only comprehensive work on this subject yet in print in English. Moosa explains in great detail, and with a large number of careful citations, many of the factors that have shaped this particular sect and informed one of the world's most intriguing religions. The scholarly discipline that Moosa brings to the subject should not be ignored, either. In keeping with Middle Eastern academic style, the author sees his subject through a rich and eclectic lens. Not only does he offer the historical perspective, but appreciates Shi'a in terms of literature, art, law and society, as well. While this could make for a dense work, it is neither dull nor obtuse. For Westerners, especially Americans, who want to know more about this influential religious movement than is offered by the often confused media, this work cannot be more highly recommended.