Article / Updated 03-26-2016
The Bible, maximally speaking, is comprised of the Old Testament (or Hebrew bible), the New Testament, and, if you are studying from the Catholic or Eastern Orthodox Bible, the Apocrypha.
The Hebrew Bible or "Old Testament" (Jewish Ordering)
The sacred books that Christianity and Judaism share in common refer to the Old Testament or Hebrew Bible (nearly all of which was originally written in Hebrew – therefore the name).