The mystical teaching of al-Shadhili, including his life, prayers, letters and followers. A translation from The Arabic of Ibn al-Sabbagh'S Durrat al-Asrar Wa Tuhfat al-Abrar. By Elmer H. Douglas, edited with an introduction and bibliography by Ibrahim M. Abu-Rabi’. (SUNY Series in Islam.) pp. xiv, 274. Albany, NY, State University of New York Press, 1993. US $19.95.