A long time ago, I had an idea to make a book for preschoolers who had older siblings who were going to school.

It's one of my favorite times of day. I'll have an array of notes, things that I want to think about. Something will start to take shape, and I'll play around with it. It's not usually an intense time. It's sort of a playful time. But it's when some really good thoughts arise.

Ideas mostly come from the work itself. Often when I'm drawing, the words will be bouncing around in my head, and when I'm writing, ideas about the drawing happen.

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.

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.

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.

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