The personality code started out pretty interesting, giving the example of the identical twins who had the same personality and though raised in different environments, both not only had the same mannerisms but also became body builders and owners of fitness clubs, pretty much the entirety of their life went along the exact same tract. The author pretty much claimed personality will determine ones life and after childhood and personality can't be altered, however, through self-awareness, one can steer ones personality towards success. But yeah, this was a very brief part of the book. I was listening to the audiobook, so there wasn't any code by which one can get the personality test which the rest of the book is based on, if I did, I may have found the bulk of this short book more interesting