I highly recommend Omerta. I agree somewhat the the GF's simplicity but then again I wouldnt want it any other way - i'm trying to get as many facts down and trying to remember them for when I see the film again. Not all Puzo books are sterotypical of this style, considering most came 15+ years later and he had seen and read more by then. Godfather was an early effort (albeit an excellent one) on his part.