If you've never heard of the Five Books of Moses (not actually composed by Moses; people who believe in divine revelation see him as more secretary than author), you've heard of the Torah and the Pentateuch, the Hebrew and Greek names, respectively, for the first five books of the Hebrew Bible: Genesis, Exodus, ...
What books did Moses write?
These five books are Genesis, Exodus, Leviticus, Numbers, and Deuteronomy. They are also collectively called the Torah. Until the late nineteenth century, the consensus view of biblical scholars was that Moses wrote these first five books of the Bible.
Who wrote Genesis and Leviticus?
Tradition credits Moses as the author of Genesis, as well as the books of Exodus, Leviticus, Numbers and most of Deuteronomy, but modern scholars, especially from the 19th century onward, see them as being written hundreds of years after Moses is supposed to have lived, in the 6th and 5th centuries BC.