Marc B. Shapiro holds the Weinberg Chair in Judaic Studies at the University of Scranton. A graduate of Brandeis (BA) and Harvard (PhD), he is the author of numerous books, articles, and reviews and is a popular scholar in residence at synagogues around the world. He has written Between the Yeshiva World and Modern Orthodoxy and The Limits of Orthodox Theology, both of which were National Jewish Book Award Finalists. Other books of his include Saul Lieberman and the Orthodox, Studies in Maimonides and His Interpreters, and Changing the Immutable: How Orthodox Judaism Rewrites Its History. In 2019 he published Iggerot Malkhei Rabbanan which contains more than thirty years of correspondence with some of the world's most outstanding Torah scholars. He regularly publishes widely-read scholarly articles on the Seforim Blog and is currently writing a book on the thought of Rav Kook. Dr. Shapiro leads a number of the Torah in Motion Jewish history trips.