The Torah (תּוֹרָה, literally teaching) consists of five books, commonly known as the Five Books of Moses.
In Hebrew, the 5 books of the Torah are identified by the first outstanding word in every book.
Bereshit (בְּרֵאשִׁית, literally In the beginning) - Genesis
Shemot (שִׁמוֹת, literally Names) - Exodus
Vayikra (ויקרא, actually And He called) - Leviticus
Bəmidbar (במדבר, actually In the desert of) - Numbers
Devarim (דברים, actually Things or Words) - Deuteronomy