The Mystics of Islam (Arkana)1990

In this short but comprehensive work, R.A. Nicholson -- who was one of the greatest Islamic scholars of the early 20th century -- provides the general reader with an easy approach to the study of Islamic mysticism. He gives a broad outline of Sufism and describes the key principles, methods and characteristic features of the inner life as it has been lived by Muslims of every class and condition from the 8th century onwards. Many quotations are given, mainly in the author's own fine translations from the original Arabic and Persian.