The Boy Who Bit Picasso was probably the best book we read.
A few other fun things:
Jimmie's Picasso Study
Three Musicians Collage
Picasso Face Pictures
Do you know what you are? You are a marvel. You are unique. In all the years that have passed, there has never been another child like you. Your legs, your arms, your clever fingers, the way you move. You may become a Shakespeare, a Michelangelo, a Beethoven. You have the capacity for anything. Yes, you are a marvel.