Reynold Nicholson

A Literary History of the Arabs

The Mystics of Islam

The Out-of-Body Travel Foundation Journal: Abú Sa‘íd Ibn Abi ’l-Khayr, Forgotten Islamic Mystic – Issue Twenty Two

The Kashf al-mahjúb: The oldest Persian treatise on Súfiism

The Secrets of the Self (Asrar-i Khudi) — A Philosophical Poem