I thought I was buying a book that had real information about pet mice. Instead it told me about Mickey Mouse, Mighty Mouse, Tom and Jerry (I'm not lieing pages and pages were devoted to cartoon characters) and the was but a 1/4 page column on breeding. NO genetics, it only tells you what you can find out on the internet. Let me put it this way: For first time pet owners, or children ages 7-15, this is probably the book they need. But, for me, the experienced mouse breeder, I was looking for genetic information. There are lots of pictures, but not of individual colors or coat types, per afrma (american fancy rat and mouse association) standards. This book shows something about how to distinguish male and female mice, something even the pet-shop employees too often don't know. It also goes in depth to feeding, housing, selecting, showing your mouse, and even to what to do to your mouse when you take a vacation. To bring it to an end, if you are a first time or even a second or third time mouse owner, or thinking of getting a mouse (they are much better than a hamster) buy this book. If you want genetic information, or lists of standards, search elsewhere. Thank you.