What I try to do in my picture books is to be all-inclusive, but not exclusive, to not exclude the kid and not exclude the parents from the experience. And it's not a very easy task; you can't find stories that work that way too much of the time.

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'm a reader. I like - I'm a great reader. I keep going back, though, to certain authors, just like I love film, but I keep going back to just five or six certain filmmakers. In literature I like Chekhov, for example; I think he's my favorite. And Flaubert - you know, that kind of concision. But I also like Tolstoy; I love those romances that, you know, weigh 500 pounds and take months and months and months to read.

Russell Hoban created a tremendous marriage of characters and philosophy. The plots, the wind-up toy characters, the settings, they all work together to support basically a dark vision that the world is kind of a dump. And we all have to find our ways of surviving in it and of making it a better place. It's a world where we don't have much help, other than what we bring to the table. It's a world in which brotherly love counts more than anything else.

If, for some reason, I cannot bear to work on something that needs to get done, I'm not going to force that. I'll just take a mental vacation. I think the best solution sometimes to working out a problem is to walk squarely away from it.

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.

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.