Stuart Gibbs is an American author who has written mostly mystery and humor books that are aimed for tweens and teens. Gibbs' books have been described as "fun, fast-paced" and "entertaining." He has written six book series: the FunJungle series, the Moon Base Alpha series, the Spy School series, the Charlie Thorne series, the Last Musketeer and Once Upon a Tim. He also wrote a Batman comic called Bruce Wayne: Not Super. Gibbs wrote screenplays for Showdown (1993), See Spot Run (2001), and Repli-Kate (2002).