Oriental Mysticism by E.H. Palmer
This is a concise study of the key concepts of Sufi philosophy, written by a western scholar in the mid-19th century. Palmer discusses the spiritual journey that Sufis take, the path to oneness with God. A very useful feature of this book is the glossary of poetic symbols used in Persian Sufi literature.
Octagon Press, 1974.
ISBN: 9780900860348. 84 pp.
Hardcover. Very good in a good+ jacket.