A book without potty humor is like a banana split without hot fudge. It can still be good, I suppose, but you kinda get the feeling that something is missing.

I've learned never to underestimate the sense of humor of a kid, ... But does it matter if the joke flies over a kid's head? No. As long as my girlfriend thinks it's funny, it stays.

Being an author is fun. It's a great job, because I can stay up as late as I want, and if I feel like taking the day off, I do it. Plus, I get to make up silly stories and draw pictures all day.

I think every character I've ever come up with has been based on someone or something I've known.

My freshman English professor at Kent State University in 1984 told me I was a good writer, and she loved all the silly pictures I drew in my notebook. She said I should try writing children's books, and so I did.

I think my funny books are my favorites because I like to laugh so much.