John Curry (History) published an extensive, peer-reviewed chapter in the (London: Routledge Press, 2021). Edited by the well-known scholar of Islamic mysticism, Lloyd Ridgeon of University of Glasgow, the volume contains chapters by more than 30 of the best-known specialists in the field of Islamic studies. It serves as an encyclopedic roadmap on the topic of Sufism from the early medieval period to contemporary times, and includes chapters covering the entire geography of the Muslim world. Curry's chapter, the 27th in the volume, covers the topic of Sufism in the Ottoman Empire.