Katell Berthelot is Researcher at the CNRS (French National Center for Scientific Research), working on the history of Judaism in the Hellenistic and Roman period. She has published mainly on Jewish literature in Greek and on the Dead Sea Scrolls, including two books with Brill (2003 and 2004).Matthias Morgenstern is Professor of Jewish Studies at Tübingen University. He has published extensively on German-Jewish Neo-Orthodoxy including "From Frankfurt to Jerusalem. Isaac Breuer and the History of the Secession Dispute in Modern Jewish Orthodoxy" (Brill, 2002).