I felt ten years old and a thousand years old, but I didn't know how to be my own age. I had never felt that way before, but now I feel like that a lot.

I love when I'm trying to do something I don't know how to do, and it kind of figures itself out along the way. And that means messing up a lot. That means throwing away a lot of drawings.

With most of my books, there are some parts that pop up right away, and other parts I have to wait for.

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.

I'm German, after all.

I think we're conditioned by watching movies.

Often they do go back and forth the whole way, and I don't know until the very end what the last line of the book is going to be. That was true here - the very last line of the book was the last thing that happened.