Louise Fitzhugh

The Long Secret is a children's novel written and illustrated by Louise Fitzhugh that was released by Harper & Row on October 27, 1965. It is a sequel or "companion" to Harriet the Spy, the only one published during Fitzhugh's lifetime. Sport, another sequel to Harriet written by Fitzhugh, was published by the …

Harriet Spies Again is a book written by Helen Ericson and Louise Fitzhugh.

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".