I don't want to make myself sound that spontaneous, because I'm not.

In some ways I'm very structured.

It would look like a notebook with dividers, and there'd be different subjects and things [preschoolers] could do, so that they could feel like they were going to school also.

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

Some of it just involved thinking about, for example, the different kinds of science, what chemistry is.

I do love that discovery of when you're trying to figure out how to make something work, and it happens in a way that you didn't predict.

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.