Leonard Lewisohn is an American author, translator and lecturer in the area of Islamic studies and a specialist in Persian language and Sufi literature. He is the editor of Mawlana Rumi Review. He is a member of the Institute of Arab and Islamic Studies in University of Exeter.
Mawlana Rumi Review: http://socialsciences.exeter.ac.uk/iais/research/centres/cpis/rumireview/
Some of Dr. Lewisohn's writings can be found here: https://exeter.academia.edu/LeonardLewisohn