This book may completely change the way you see things. It is about the Sufi(Islamic) conception of God, Creation, etc and is useful for both Muslims and Non-Muslims in understanding the philosophy and rich scholarship of Sufism. The author approaches it from a very orthodox and traditional view, unlike the "New Age Sufism" that is prevalent in some circles. Also, the author is a reputable scholar who has mastered the languages of classical Sufi writers.
If you are interested in Islam or Sufism and approach things with an unbiased point of view, you owe it to yourself to read this book. I borrowed it from a public library and now I plan on buying it.
This book is not about politics or "why I am right, and you are wrong". Buy this book only if you are interested in learning about Sufism/Islam directly from its sources