The Catholic Bible contains 73 books. This includes 46 books in the Old Testament and 27 books in the New Testament. The Old Testament includes seven deuterocanonical books (Tobit, Judith, Wisdom, Sirach, Baruch, and 1 and 2 Maccabees, plus additional portions of Esther and Daniel) that are not found in most Protestant Bibles, which typically have 66 books total.
Kelvin you are correct. Thanks for participating.