The Afterlife Experiments (full title: The Afterlife Experiments: Breakthrough Scientific Evidence of Life After Death) is a book written by Gary Schwartz and William L. Simon, with a foreword by Deepak Chopra. The book contains four reports detailing a series of experiments that utilized mediums and sitters to investigate whether or not there is life after death.The psychologist Ray Hyman published a detailed criticism of Schwartz's techniques, titled "How Not to Test Mediums".