The number of books in the Bible differs between branches of religious faith. In the Protestant canon, the Bible has 66 books in total (39 in the Old Testament and 27 in the New Testament) while Catholics use a bible with 73 books (46 in the Old Testament and 27 in the New Testament).
Conclusion
The Catholic, Eastern Orthodox, Syrian Orthodox and Ethiopian Orthodox faiths all accept varying numbers of additional books in the Old Testament canon. Generally, all branches of the Christian faith accept the total overall content of the Protestant New Testament, but some order the books differently.