Teenagers are always sneaking around in drawers where they shouldn't go and reading things they shouldn't be reading. And that's an attempt to try, I think, to penetrate, that's how I found out as a teenager what was going on, was by sneaking into drawers and reading letters that I had no business reading.

Even though I have this solid career in picture books, I've not only been thinking about kids - because I don't think that much about children; I'm not a child educator; I'm just a former child.

The whole basis of working in black and white and grays became the basis of my understanding of color, because it's all about tone, it's all about light and dark. If you don't get that, then your color work is going to be a mess. So that's the beginning of the toolkit: drawing and black and white media.

There are just certain things you can't talk about with kids. I just totally do not believe in this sort of Bart Simpson character who infects so much of our literature and film and TV stuff nowadays, these know-it-all kids who seem to understand the hypocrisy of the adult world so thoroughly and can talk about it with such articulateness. That's bunk. Kids are kids; they're innocents, they really are. For a long time, no matter what they see, no matter what they're exposed to, they can't get it until they have developed enough.

I feel that if I had not had an art program in my school, I would have failed in a big way. My teachers knew I was intelligent, but they didn't quite know how I was ever going to apply that intelligence. The one or two teachers who knew me well knew that it would be through drawing or acting or whatever means of expression I was allowed.

I began drawing probably when I was - around the same time everybody else puts a mark on a piece of paper with a crayon - when I was two, probably. The difference between me and everybody else is, I kept doing it for the rest of my life; there was something very satisfying about that.

I don't know if I ever would have developed into a good actor, but that got completely scotched when I lost my vocal cord at 14 in the operation. But writing always - writing plays, writing, writing, writing, that was what I wanted to do.