Sufism: An Account of the Mystics of Islam (Routledge Library Editions: Islam, Vol. 42)

Originally published in 1950.

Thinkers such as Ghazali and Ibn `Arabi, poets such as Ibn al-Farid, Rumi, Hafiz and Jami were greatly inspired by the lives and sayings of the early Sufis. This book was the first short history of Sufism to be published in any language, illustrating the development of its doctrines with numerous quotations from literature.