Samuel Heilman holds the Harold M. Proshansky Chair in Jewish Studies and Sociology at Queens College, City University of New York. He is the author of "Synagogue Life" (1976), "The Gate Behind the Wall" (1984), "A Walker in Jerusalem" (1986), "Cosmopolitans and Parochials" (1989), "The People of the Book" (1993), and "Portrait of American Jews" (1995).