The Baker Illustrated Bible Dictionary
Tremper Longman III
Elaine Pagels, The Gospel Truth (A Modern Day Gnostic)
Elaine Pagels & Diane Rogers
A Grief Observed
C. S. Lewis
Socrates Meets Descartes: The Father of Philosophy Analyzes ...
Peter J. Kreeft
Georges Ivanovich Gurdjieff - The War Against Sleep - The Strange ...
Colin Wilson
Key Bible Concepts
David W. Gooding & John Carson Lennox