BarfieldOwen. “Lewis, Truth, and Imagination.”San Rafael: Barfield, 1977.
2.
BursonScott R.WallsJerry L., C. S. Lewis and Francis Schaeffer: Lessons for a New Century from the Most Influential Apologists of Our Time. Downers Grove, IL: InterVarsity, 1998.
3.
MitchellChristopher. Foreword. The C. S. Lewis Readers' Encyclopedia. Grand Rapids: Zondervan, 1998.
4.
SchakelPeter. Imagination and the Arts in C. S. Lewis: Journeying to Narnia and Other Worlds. Columbia: U of Missouri P, 2002.
5.
SchakelPeter. Reason and Imagination in C. S. Lewis: A Study of Till We Have Faces. Grand Rapids: Eerdmans, 1984.