Maria Dateno
Maria Dateno asked Stuart Gibbs:

I'm really enjoying your Spy School series! What age range of kids would you personally recommend it for? Obviously kids' reading levels and interests vary, and lots of adults like to read kids books(!), but generally speaking...

Stuart Gibbs According to the publisher, the official recommended age is 8-12. I know of kids who have read it at seven. Just to include the adults, I like to say ages 8 and up.

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