Dan Barker is a former-evangelical-preacher-turned-outspoken-atheist who, along with his wife Annie Laurie Gaylor, runs the Freedom From Religion Foundation, a nonprofit dedicated to the separation of church and state. He has written numerous articles for Freethought Today, an American freethought newspaper, and is also the author of Godless (Ulysses Press) and God: The Most Unpleasant Character in All Fiction (Sterling).