I generally have an idea where I want to go, but I don't know how I'm going to get there.

I remember when I was working on All Alone in the Universe, and Robin Roy was my editor. When I first sent it to her, she said kids this age don't want pictures in their books.

One of my favorite moments in that book [As Easy as Falling Off the Face of the Earth] was when something happened that I had no idea was going to happen.

I had a general outline of subjects. The way I start my days is my husband brings me a thermos of coffee up to the bedroom.

I creep over to my chair and sit there with my notebook and my thermos of coffee. It's my best time for thinking, because I haven't started thinking about anything else yet, and the thoughts can kind of go in and out of my head.

I knew what infinity was. Being a previous art student, I knew about some art concepts.

It really does feel, partly because of graphic novels kids read, like there's a lot of freedom with how you can use both images and words, because we think in both of those ways.