Do Jewish people use the Old Testament, or is their Bible different from ours?

The Jewish people use the Tanakh (or T-N-K)—which is an acronym for Torah (Pentateuch), Nevi'im (Prophets) and Ketuvim (Writings). The contents of the Tanakh are identical with the "Christian" version of the Old Testament; however, the order in which the books appear and the chapter and verse divisions are different. The order in which the books appear in the Tanakh is based on the Hebrew text, whereas the order in which the books appear in the "Christian" version of the Old Testament is based on the Greek translation (the Septuagint) of the Hebrew text.