Arbuthnot, May Hill. Children and Books. 3d ed. Chicago: Scott, Foresman, 1964. Contains brief commentary on the merits of Haugaard's earliest books.

Commire, Anne, ed. Something about the Author. Vol. 4. Detroit: Gale Research, 1973. Contains a biographical overview plus the author's own account of his work.

Kirkpatrick, D. L., ed. Twentieth-Century Children's Writers. New York: St.

Martin's, 1978. Provides a bibliography of Haugaard's books and a brief critical summary of his writings for young people.