I do keep up at night. I try not to let my mind go to extremes in the middle of the night because it would be better to turn all that stuff into dreams; it would be better if I was sleeping, because dreams become good metaphors for what's really going on inside of you.

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.

One of the glories of doing the book So You Want to Be President? was the shifts in tone, where I was able to be humorous and then very serious. And the impeachment page is certainly the best example of that. I didn't have to think too much about how to present this one. I got the idea right away that a good way of showing the shame of President Nixon would be to put him down in the shadows under the Lincoln Monument, with Lincoln sort of glaring down at him from an elevated, better-lit position.

I used to teach on a college level, and I've taught in schools where kids just wanted to be artists, and I used to be furious with them if they didn't read, because they just seemed so - their education seemed so thin if all they could do was pick up a paint-loaded brush and fling it at a canvas. I mean, there was nothing to express there, except maybe their own personal feelings. But if they're not - if they don't have a grounding in the way these things have been expressed by other people down through the centuries, then they're lost.

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.

You have to get through periods of being blocked. Everybody has them. For me, they have everything to do with self-doubt. It's never a matter of laziness or inability. It's just a matter of believing that what I'm doing is worthwhile, that it matters.I just make myself work. I just make myself go to work, whether I feel like it or not.

I grew up going to the theater. That was one of the nice things my mom did was she took us to plays and symphony concerts and to the museums. Theater captured my imagination. I just loved the idea of that box, which is essentially what a stage is from a certain distance, a box with all this life going on in it. So, I was eleven when I wrote my first play. Of course, it was horrible.