This book is the most detailed and authentic book ever written about a Sufi order in English. It provides a comprehensive history of the Naqshbandi Tradition, tracing the lives of its foremost teachers from Prophet Muhammad (p.b.u.h.) to the present. Their life stories are intimately woven with landmark events of history. However, the book also contains much more. It details the fundamental principles of the Sufi path and the primary teachings of the Naqshbandi Order, exploring the doctrines and philosophy behind this important current in spiritual thinking.