This volume presents the reader with a fascinating collection of hymns composed by El'azar the Babylonian, an Arab-Jewish poet who is active in Baghdad during the first half of the 13th century. His religious oeuvre consists of dozens of hymns, coming down to us from the treasures of the Cairo Genizah and the Firkovicz Collections. His compositions provide a cross-section of genres and liturgical destinations. El'azar's devotional hymnology is characterised by a striking spiritual tendency which reveals his familiarity with contemporary Sufism in both Muslim and Jewish circles.