Normally I would give it a five.
But I bought the printed copy, without reading the pgf. While I did love the information, and the pictures were nice, the print is way too small. I had to use my magnifying glass to read it.
Surely for the price they could have added a few more pages, or increased the dimentions of the book so it had a more reasonable tyoe size.
[4 of 5 Stars!]