Overall, Liber des Ghouls fails to meet par with other MET books. It is riddled with errors ranging from typos and bad editing to out right contradictions from one chapter to the next. It is very, very short, with almost no new information at all. I highly recommend using Laws of the Hunt for playing mortals (it has the ghoul creation rules and much more) and augmenting it with ideas from Ghouls:Fatal Addiction (tabletop) if you aren't satisfied.