The Book of Answers: Getting Wise in a Wisdom-crazy World

The Divine Life of Animals: One Man's Quest to Discover Whether the Souls of Animals Live On

The Map of Heaven: A neurosurgeon explores the mysteries of the afterlife and the truth about what lies beyond

Proof of Angels: The Definitive Book on the Reality of Angels and the Surprising Role They Play in Each of Our Lives

Proof of God: The Shocking True Answer to the World's Most Important Question