The Rabbi Michael Strassfeld Collection comprises of personal papers and Jewish sound recordings which constitute a unique resource for studying American Judaism and the Jewish culture since the 1960s. Rabbi Strassfeld was one of the key leaders of the Havurah movement, co-author of the The Jewish Catalog, and a pioneer of the Jewish Counter Culture movement which explored dynamic new forms of Jewish life beyond the denominational structures of American Judaism  in the last decades of the 20th century.