Format: like most of the works here, this is a direct-to-pdf scan. The original is an almost - new quality, very nicely illustrated and written book. The scan was a bit off and some of the lines are slightly jagged and a few pages are noticably off-perpendicular.
Text & illustrations: some of the text is unfortunately in orange and some of the illustrations are too faint or too dark to print well. Otherwise very nice.
Content: very good. It was a bit rules - heavy for me, but still a very fun read.