Daniel J. Lasker, Norbert Blechner Professor of Jewish Values, Emeritus, at Ben-Gurion University of the Negev, Beer Sheva, Israel, has authored six books and over two hundred other publications in the fields of Jewish philosophy, Karaism and the Jewish-Christian debate. Johannes Niehoff-Panagiotidis is Professor of Byzantine Studies at the Freie Universität Berlin (since 2007), and has published two monographs on Byzantine-Greek and Arabic language and literature. His current research has centered on Byzantine-Oriental relations. David Sklare was Director of the Center for the Study of Judeo-Arabic Culture and Literature of the Ben-Zvi Institute (1995-2015) and is currently a research associate at Hebrew University and the Ben-Gurion University of the Negev.