When you do the kind of work I do, everything is challenging, but probably the most challenging thing is getting up in the morning and getting on with it because it's so easy to stay in bed and not get on with it.

I think a play can do almost anything, because it's also a static form, much more so than in a movie. In a movie you can move the scenery, you can do anything any way. A cartoon, happens in a limited amount of space and a limited amount of time, and you can only get so many words before the reader's gonna get impatient. All of these forms that I enjoy are in a sense a slight of hand, where you have to suggest much more than you really show. You have to, in a sense, seduce the reader and trick the reader or the audience into going with you.

That was exciting to be able to comment on civil rights. I mean, the civil rights movement that young people don't know about today, but Martin Luther King was considered by the establishment press in the early years of the sit-in movement as a dangerous man, and he was the equivalent at that time as Malcolm X. And he was told to stop his demonstrations; they were against the law and all of that. Now that he's sainted and sanctified we've forgotten.

I found it was my good fortune to somehow be able to work in these forms that I loved when I was a kid. I love movies and I could write screenplays. I love theater and I could write plays. I mean, they would be my own, I could never write what was used to be called the well-made play. But my first play, "Little Murders," turned out to be a great success and a great influence on plays at that time.

There's the excitement of adding color, which I didn't know anything about until 1997 or so, when I did my first picture book. So, the kid's book in particular have been exciting for me because it forced me to go back to the work I loved as a young boy reading Sunday's supplements and comics in the Sunday papers when I was six, seven, eight, nine. And number of which have been in wonderful collections, beautifully reproduced.

When you do the kind of work I do, everything is challenging, but probably the most challenging thing is getting up in the morning and getting on with it because it's so easy to stay in bed and not get on with it.

There's some brain damage, but it may be that very brain damage that allows me to do the work I do.