Norton Juster — American Architect born on June 02, 1929,

Norton Juster is an American academic, architect, and popular writer. He is best known as an author of children's books, notably for The Phantom Tollbooth and The Dot and the Line... (wikipedia)

I write best in the morning, and I can only write for about half a day, that's about it.
When you're very young and you learn something - a fact, a piece of information, whatever - it doesn't connect to anything.
But I find the best things I do, I do when I'm trying to avoid doing something else I'm supposed to be doing. You know, you're working on something. You get bugged, or you lose your enthusiasm or something. So you turn to something else with an absolute vengeance.
A good book written for children can be read by adults.
I received a grant from The Ford Foundation to write a book for kids about urban perception, or how people experience cities, but I kept putting off writing it. Instead I started to write what became The Phantom Tollbooth.