Hein, Roland. The Harmony Within: The Spiritual Vision of George MacDonald.

Grand Rapids, MI: Christian University Press, n.d. Chapter 2 discusses MacDonald's theme of spiritual maturation in the Princess books.

Lewis, C. S. "Preface." In George MacDonald: An Anthology. New York: Macmillan, 1947. Lewis characterizes the type of fantasy MacDonald wrote.

MacDonald, Greville. George MacDonald and His Wife. New York: Dial Press, 1924. This is the standard edition of MacDonald's life and letters.

Manlove, C. N. Modern Fantasy: Five Studies. Cambridge: Cambridge University Press, 1975. Manlove challenges Wolff's reading on the grounds that it is too allegorical. He also explores the religious symbolism of Grandmother's possessions.

Phillips, Michael R. George MacDonald: Scotland's Beloved Storyteller. Minneapolis: Bethany House, 1987. This highly detailed biography relies on treating MacDonald's novels as highly autobiographical.

Reis, H. Richard. George MacDonald.

New York: Twayne, 1972. Although it does not contain an extensive analysis of the...