The short answer is that the Torah is the first five books of Moses: Bereishit (Genesis), Shemot (Exodus), Vayikra (Leviticus), Bamidbar (Numbers), and Devarim (Deuteronomy).
The first five books of the Hebrew Bible are often known as “Torah,” which means “The Law.” This title indicates the shared Jewish and Christian tradition that Genesis through Deuteronomy represents a cohesive divine revelation to ancient Israel in the Sinai desert following the Exodus event and giving of the covenant. Most Bible scholars agree that the Torah resembles legal codes and treaties found among neighboring ancient Near Eastern cultures and have documented correlations between Torah and legal codes of the Babylonian, Assyrian and Hittite Empires.