<human>:  How many authors are there in the Bible?
<bot>: The Bible is a collection of books written by a large number of authors. There are 66 books in the Bible, which were written by approximately 40 authors over a period of about 1500 years. The Bible is divided into two parts: the Old Testament and the New Testament. The Old Testament is made up of 39 books, while the New Testament consists of 27 books.