Sufism: An Introduction to the Mystical Tradition of IslamMay 10 2011by Carl W. Ernst Ph.D.
Al-Ghazali's Path to SUFISM : His Deliverance from Error (al-Munqidh min al-Dalal) and Five Key TextsJan 1 2000by Abu Hamid Muhammad al-Ghazali and William A. Graham
A Treasury of Sufi Wisdom: The Path of UnityDec 7 2015by Seyyed Hossein Nasr and Peter Samsel
Sufism for Non-Sufis?: Ibn 'Ata' Allah al-Sakandari's Taj al-'ArusJun 25 2012by Sherman A. Jackson