Maybe you know someone who swears by the reliability of psychics or who is in regular contact with angels. Or perhaps you're trying to find a nice way of dissuading someone from wasting money on a homeopathy cure. Or you met someone at a party who insisted the Holocaust never happened or that no one ever walked on the moon.

How do you find a gently persuasive way of steering people away from unfounded beliefs, bogus cures, conspiracy theories, and the like? Longtime skeptic Guy P. Harrison shows you how in this down-to-earth, entertaining exploration of commonly held extraordinary claims.

A veteran journalist, Harrison has not only surveyed a vast body of literature, but has also interviewed leading scientists, explored "the most haunted house in America," frolicked in the inviting waters of the Bermuda Triangle, and even talked to a "contrite Roswell alien."

Harrison is not out simply to debunk unfounded beliefs. Wherever possible, he presents alternative scientific ...