Reynold Alleyne Nicholson (1868–1945) was one of the foremost European scholars of Islamic mysticism. His pioneering translations and editions of major Sufi texts—including Dīvāni Shamsi Tabrīz (1898), The Mystics of Islam (1914), and the monumental eight-volume edition and translation of Rumi’s Mathnawí (1925–1940)—remain foundational works in the field. He also authored the influential Literary History of the Arabs (1907) and several studies on Islamic poetry and personality in Sufism. Nicholson's literary sensitivity and rigorous scholarship transformed Western understanding of Sufi thought and literature. Alan Williams is Professor of Iranian Studies and Comparative Religion at the University of Manchester. He is the author of several books on Zoroastrian and Islamic literature in Iranian languages and is one of the few scholars of ancient Iranian languages who also works on Classical Persian texts of the medieval period. He also translates modern Persian poetry.