Leonard Lewisohn is a Research Associate at the Centre of Near and Middle Eastern Studies at the School of Oriental and African Studies, University of London, as well as a Research Associate and lecturer in Persian at The Institute of Ismaili Studies. His works include Beyond Faith and Fidelity: The Sufi Poetry and Teachings of Mahmud Shabistari (London, 1993), a critical edition of Divan-i Muhammad Shirin Maghribi (Tehran, 1993), and several works of translation on Persian Sufism. (updated 2003)