I will tell you how Joe Ordia does things, by ripping off families like mine for thousands of dollars. He designed a solar project for my house, then admits he messed up and wanted more money. Then he never did a bit of the work after collecting thousands for "design/permits" and "materials". Been well over a year, promise after promise after promise to pay me back. I don't know anything about this book but from my experience with this man he has no right to be telling people how to do anything. Don't make the mistake I did and trust him. BEWARE!!!!!!! Even if he paid back the money I gave him for the project, it won't make up for the money I spent preparing for his project and the financing loss I face. Just because he hides behind a new company name now, NEXUS, he is the same loser. BUYER BEWARE!!!!!!!!!!