James Randi is internationally known as a magician and escape artist. But for the past thirty-five years of his professional life, he has also been active as an investigator of the paranormal, occult, and supernatural claims that have impressed the thinking of the public for a generation: ESP, psychokinesis, psychic detectives, levitation, psychic surgery, UFOs, dowsing, astrology, and many others. Those of us unable to discriminate between genuine scientific research and the pseudoscientific nonsense that has resulted in fantastic theories and fancies have long needed James Randi and Flim-Flam!