Deuterocanonical books means "second canon" in Greek. It usually means the parts of the Bible that are only used by some Christian churches (mostly Roman Catholic and Orthodox). The books have originally been written in Greek language and they date to era of some 250-150 years before Christ.
- The Book of Tobit
- The Book of Judith
- The First Book of Maccabees, also called 1 Maccabees
- The Second Book of Maccabees, also called 2 Maccabees
- The Wisdom of Solomon, also called The Book of Wisdom
- The Book of Sirach, also called Ecclesiasticus
- The Book of Baruch, with the Letter of Jeremiah as its last chapter
Most Protestant Christian churches do not think that the deuterocanonical books were inspired by God. They call these books Apocrypha. Martin Luther considered these book very good and useful reading; John Calvin considered them as work of Satan.