The difference between children and adults is that they're shorter - not dumber.

The common thread of the series is that these are the books that Elephant and Piggie like to read. Elephant and Piggie are retired, so this is what they do in their spare time. What will they end up wanting to read? Time will tell. We've got to let that evolution happen as the series goes on. Any return of a character would have to be organic, would have to be, for example, Laurie Keller saying, hey, I really want to do this, and me feeling that there's a story there, rather than just saying, yeah, we can get three books out of these characters.

The first bowl of chocolate pudding was too hot, but Goldilocks ate it all anyway because, hey, it's chocolate pudding, right?

Writing for children is as easy as describing the history of the Byzantium in three words.

A book, being a physical object, engenders a certain respect that zipping electrons cannot. Because you cannot turn a book off, because you have to hold it in your hands, because a book sits there, waiting for you, whether you think you want it or not, because of all these things, a book is a friend. It’s not just the content, but the physical being of a book that is there for you always and unconditionally.

I also learn a lot about everybody else's process. People create in different ways, so that has opened me up to different processes and experimenting. Laurie Keller is a character person, so she came to the project with these blades-of-grass characters that we were able to literally grow a story around.

Kids are super-independent. This is the time when you don't need your parents for a story anymore. You have a great degree of agency and independence.