The Psi Encyclopedia is a collection of articles and case studies about psi research, the scientific investigation of psychic phenomena. It's a work in progress, being created by the Society for Psychical Research in London. Learn more >

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Barry Taff is an American author and investigator of hauntings, UFOs and alien abduction phenomena

Pioneering Japanese experimental psychologist (1869-1952) who also carried out psi research, noted in particular for experiments in ‘thoughtography’.

Scottish psychiatrist, university teacher and medical historian (1917-2003) who studied the kinds of psychic experiences reported by his patients.

GW Fisk (1882-1972) was a British experimental parapsychologist who made a notable contribution to ESP research.  

Austrian-born American author (1920-2009) and paranormal investigator, notably of the Amityville haunting, viewed with suspicion by some other parapsychologists.