He is the author of Speaking Infinities: God and Language in the Teachings of Rabbi Dov Ber of Mezritsh (Philadelphia: University of Pennsylvania Press, 2020; Hebrew translation, 2022);Laws of the Spirit: Ritual, Mysticism, and the Commandments in Early Hasidism(Stanford University Press, 2024; Hebrew translation, in progress); and Hasidism: Writings on Devotion, Community, and LIfe in the Modern World, with Sam Berrin Shonkoff (Brandeis University Press, 2020). His next project, As a Deep River Rises: Judaism, Ecology and Environmental Ethics, is under contract with Brandeis University Press, and he is currently working on a biography of the Baal Shem Tov for the Jewish Lives Series (Yale University Press)