Roman Catholic Bibles have several more books in the Old Testament than Protestant Bibles. These books are referred to as the Apocrypha or Deuterocanonical books. The word apocrypha means “hidden,” while the word deuterocanonical means “second canon.” The Apocrypha/Deuterocanonicals were written primarily in the time between the Old and New Testaments. The books of the Apocrypha include 1 Esdras, 2 Esdras, Tobit, Judith, Wisdom of Solomon, Ecclesiasticus, Baruch, the Letter of Jeremiah, Prayer of Manasseh, 1 Maccabees, and 2 Maccabees, as well as additions to the books of Esther and Daniel. Not all of these books are included in Catholic Bibles.