Its always frustrating to spend 25 dollars on a book that claims to teach something and doesn't follow through. That is the case with this book. Nothing here I couldn't have gotten surfing the web for free. Books that claim to be for idiots should be for people who are new to the subject, not for people stupid enough to waste their money on a book that doesn't follow through. I burned it along with some PILOT books fromt he 70's.