Though informative, the real value is in the illustrations and amusing text which has been written in the style of a computer manual. In the section on dog anatomy, nipples are described as preinstalled docking ports for peripherals, noting that "the circuitry of the male model renders these valves inoperative." The book is liberally peppered with gems like these. Another reviewer mentioned that the illustrations are very Ikea and that was spot on--Ikea ought to consider selling this in their pet section. I would not personally use this book to replace a more text-base dog book with photos, but it's ideal as a gift, worth the laughs, and has some interesting facts and essential information.