Actually Moses didn't write the first 5 books, especially considering that the 5th book describes Moses's death.
Nobody knows who wrote these fairy tale books. There is nothing special about the bible. A book that is full of nonsense and contradictions.
Even the things in the bible that you could say are good, are not impressive in anyway. Ohh, "don't kill", "don't rob", "don't sleep with your neighbors wife". We are supposed to be impressed by that? Even other people around the world who don't believe in the bible have figured that out.
You can walk into any book store and find self help books that far ahead of the bible. Books that provide real strategies and methods for living healthy, balanced lives, not the vague and redundant drivel based on middle eastern peasant philosophy.