Daniel J. Lasker is the Norbert Blechner Professor of Jewish Values (emeritus) in the Goldstein-Goren Department of Jewish Thought at Ben-Gurion University of the Negev, Beer Sheva, Israel. He holds a Ph.D., M.A. and B.A. from Brandeis University. Prof. Lasker has taught at Yale University, Princeton University, University of Toronto, Ohio State University, University of Texas, University of Washington, Boston College and other institutions. He is the author of over two hundred fifty publications in the fields of medieval Jewish philosophy, especially on the thought of Rabbi Judah Halevi; the Jewish-Christian debate, including the edition of a number of central Jewish polemical texts; and Karaism. He has recently published (with Johannes Niehoff-Panagiotidis and David Sklare), Theological Encounters at a Crossroads: A Preliminary Edition of Judah Hadassi's Eshkol ha-kofer, First Commandment, and Studies of the Book's Judaeo-Arabic and Byzantine Contexts, Leiden/Boston: Brill, 2019. His latest book is: Karaism. An Introduction to the Oldest Surviving Alternative Judaism, London: Littman Library, 2022.