The Jewish prayer book, the siddur, is the longest continuous record of the history, philosophy, literature, and ethos of the Jewish people. It has been read and reread in every generation, in every Jewish community. Now, for the first time, Ismar Elbogen's Jewish Liturgy: A Comprehensive History, the most complete scholarly study of Jewish liturgy in existence today, is available to the English-speaking community. Originally published in German, the work was reissued in.