The Old Testament Apocrypha is the best-loved and most-studied body of literature left out of the Protestant Bible. Called "duetero-canonical" by Catholic Christians, these books shed invaluable light on the critical period of Jewish history taking place between the testaments. Include 1 & 2 Esdras, Tobit, Judith, Additions to Esther., Ecclesiasticus, Wisdom of Solomon, 1 Baruch, Epistle of Jeremiah, Song of the Three Holy Children, Susanna, Bel & the Dragon, Prayer of Manasses, 1 & 2 Maccabees.