12 Over 30 years after publishing the first installment of I Spy, the beloved children's puzzle book series created by author ...

Does this look familiar? These photos are from the "I Spy" book series, introduced in 1992, and there's a good chance that either you or your kids have read them. But did you know that all of ...

Adults are about adrenaline and false identities. For kids, it’s about stealth and secrets. Spy books for kids: City Spies series by James Ponti. Spy School series by Stuart Gibbs.