On Poltergeists is a book written by Frank Podmore that explores the phenomenon of poltergeists. The author delves into the history of poltergeist sightings and the various theories that have been put forth to explain them. He examines the role of the human mind in creating these phenomena and the possibility of fraud or deception. Podmore also provides case studies of well-known poltergeist incidents, such as the Enfield Poltergeist and the Bell...