Harriet the Spy is a children's novel written and illustrated by Louise Fitzhugh that was published in 1964. It has been called "a milestone in children's literature" and a "classic".[3][4] In the U.S., it ranked number 12 in the 50 Best Books for Kids and number 17 in the Top 100 Children's Novels on two lists generated in 2012.[5][6]
It was followed by two "companion books", the sequels, The Long Secret (1965) and Sport (1979), the latter of which was released posthumously after Fitzhugh's death in 1974. A feature film based on the novel starring Michelle Trachtenberg was released by Nickelodeon Movies in 1996. A made-for-television sequel, Harriet the Spy: Blog Wars, aired in 2010. A television series based on the novel premiered on Apple TV+ in 2021.
