Stefan C. Reif is Professor of Medieval Hebrew Studies and Director of the Genizah Research Unit in the University of Cambridge. His publications are: Shabbetai Sofer and his Prayer-Book (1979); (ed.) Interpreting the Hebrew Bible (1982); Published Material from the Cambridge Genizah Collections (1998); (ed.) Genizah Research After Ninety Years (1992); Judaism and Hebrew Prayer (1993); Hebrew Manuscripts at Cambridge University Library (1997); A Jewish Archive from Old Cairo (2000); and over two hundred articles.