Notes:

Spotted this in the Crafts & Hobbies section at a Barnes & Noble bookstore. I leafed through it; it's actually fairly in-depth, talking about things like how best to adapt the recognizable traits of various animal groups (birds, equines, rodents, and so on). As far as I could tell, the book didn't say anything about the (ahem) reputation of its subject matter.

I didn't buy it. I'm not much of an artist.