A Los Angeles Times review, "Are angels among us?", has declared The Third Man Factor "engrossing -- and formidable" and compares the book favourably with Christopher Hitchens' God Is Not Great and Richard Dawkins' The God Delusion. Here is an excerpt from the Times' review by Nick Owchar:

...[Geiger's] book is engrossing, balanced (no barbs are directed at skeptics or believers) -- and, in the end, this book may be more challenging to some people's religious beliefs than either Christopher Hitchens' "God Is Not Great" or Richard Dawkins' "The God Delusion."

Why? Most of us, when the question of God's existence comes up with friends in a restaurant, don't debate it in terms of what Hitchens or Dawkins has to say (though I'm sure there are some who do). We speak more personally -- about what we feel, about incidents that seem providential and not coincidental, about what our grandmas taught us or about attitudes to the afterlife -- drawing not on Aquinas and Dante but on CBS' "Ghost Whisperer."

And this is why Geiger's book is so engrossing -- and formidable. Though he doesn't push an agenda, his survey of stories about "the third man" -- a term arising out of experiences involving pairs of individuals in dangerous situations -- invariably attacks a common belief in angels...