Justin's research interests focus on the intersection of law, science, and theology in the pre-modern Muslim Middle East. Stearn’s first book was Infectious Ideas: Contagion in Pre-Modern Islamic and Christian Thought in the Western Mediterranean (Johns Hopkins University Press, 2011) and he has published articles in Islamic Law and Society, Medieval Encounters, Al-Qantara, and History Compass. He is currently working on a book on the social status of the natural sciences in early modern Morocco entitled Revealed Science: The Natural Sciences in Islam in the Age of al-Hasan al-Yusi (d. 1691) as well as on an edition and translation of al-Yusi’s Muhadarat for the Library of Arabic Literature.