The deuterocanonical books, meaning 'of, pertaining to, or constituting a second canon', collectively known as the Deuterocanon, are certain books and passages considered to be canonical books of the
Copies of the Luther Bible include the deuterocanonical books as an intertestamental section between the Old Testament and New Testament; they are termed the "Apocrypha" in Christian Churches having their origins in the Reformation.
The contents page in a complete 80-book King James Bible, listing "The Books of the Old Testament", "The Books called Apocrypha", and "The Books of the New Testament".