Raymond A. Moody Jr. is an American philosopher, psychiatrist, physician and author, most widely known for his books about afterlife and near-death experiences (NDE), a term that he coined in 1975 in his best-selling book Life After Life. His research explores personal accounts of subjective phenomena encountered in near-death experiences, particularly those of people who have apparently died but been resuscitated. He has widely published his views on what he terms near-death-experience psychology.

A near-death experience (NDE) is a profound personal experience associated with death or impending death, which researchers describe as having similar characteristics. When positive, which the great majority are, such experiences may encompass a variety of sensations including detachment from the body, feelings of levitation, total serenity, security, warmth, joy, the experience of absolute dissolution, review of major life events, the presence of a light, and seeing dead relatives. When negative, such experiences may include sensations of anguish, distress, a void, devastation, and seeing hellish imagery.