Cameron, Eleanor. The Green and Burning Tree. Boston: Little, Brown, 1969.

This collection of essays about the writing and reading of children's books includes several appreciative references to Estes's works. In particular, it cites her use of language to express children's delight in word play and in the making of meaning.

Hopkins, Lee Bennett. "Eleanor Estes."

In More Books by More People. New York: Citation Press, 1974. In this interview, Estes discusses her writing career, habits, and the origin of Ginger Pye.

Kunitz, Stanley J., and Howard Haycraft, eds. The Junior Book of Authors. Rev. ed. New York: H. W. Wilson, 1951. Estes supplies a brief autobiographical sketch describing her childhood in Connecticut and early influences on her writing.