It seems to me that the Author is bent on churning out any old drivel in order to make a quick buck, He never spends more than a few pages on any chapter in any book he has written and his sources for his material are questionable at best.
He is good at presenting a concept then running out half way through and his material can be gained free of charge from the internet, infact that is what i would advise anyone who is intent on throwing their money away on this author, his credentials may sound great but his work doesn't live up to it...don't waste your money