Focus on Hallucinogens: This is a little gem I've held onto since my friends Ken and Glen mailed it to me as part of a care package when I was working in Alaska after high school. It's from 1991 and out of print but still in near-perfect condition. I wrote children's science books for two years but never wrote one as fun or useful as this. It explains to 9-year-olds everything from neurons to shamans. Rad!
