Shankyshack asked Stuart Gibbs:

I know you don't know how many books each of your series would have, but if you were to guess, which one of said series would you think you could have the most material to write with?

Stuart Gibbs Spy School is the series that is easiest to create stories for.

I am big fan of yours and I love all of your series. I was wondering do you work on a book in one series start to finish, or do you work on multiple books simultaneously?

Reagan White asked Stuart Gibbs:

A Goodreads user asked Stuart Gibbs:

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