Rosemary Ellen Guiley (1950 - 2019) was an American writer on topics related to spirituality, the occult, and the paranormal. She was also a radio show host, a certified hypnotist, a board director of the "National Museum of Mysteries and Research" and the "Foundation for Research into Extraterrestrial Encounters", and a "Lifetime Achievement Award" winner from the Upper Peninsula Paranormal Research Society, Michigan. She has written more than 49 books, including ten encyclopedias. Guiley died suddenly on Thursday, July 18, 2019.