for being such a thick book, they've left out a lot of detail & there is a lot of white space. for the DIYer, there's not enough hand-holding (details + pictures) to figure out exactly what you're supposed to do! i've found better step-by-step instruction on the internet. the book is not worth its weight and that is my biggest problem. why is it so expensive & so thick (they've used really heavy paper) for such an amateur publication?!? a big mismatch here...