What is Sufism? (Islamic Texts Society)

Martin Lings, formerly Keeper of Oriental Manuscripts in the British Museum and the British Library, is the author of two works on Islamic mysticism, The Book of Certainty and A Sufi Saint of the Twentieth Century, both published by the Islamic Texts Society. His Muhammad: His Life Based on the Earliest Sources, also published by the Islamic Texts Society, has been internationally acclaimed as a masterpiece.Lings, Martin is the author of 'What is Sufism? (Islamic Texts Society)', published 1999 under ISBN 9780946621415 and ISBN 0946621411.