The Psi Encyclopedia is a new 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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British trance medium who collaborated with investigators of the Society for Psychical Research in the 1920s and 1930s, notable for innovative approaches such as proxy sittings and book tests. 
American entrepreneur (1915-1995), adept in out-of-body experiences and founder of The Monroe Institute, which offers training in the use of his Hemi-Sync technology to explore consciousness. 
Icelandic trance medium (1883-1910) who produced physical phenomena of strength and variety comparable to that of DD Home. The phenomena were closely observed and detailed records were kept; no fraudulent behaviour was ever reported. 
American psychologist and parapsychologist who is internationally known for research on the nature of consciousness and has experimented widely in psi and out-of-body experiences.
American psychologist, parapsychologist and author (1895-1979) who made major contributions to psychology and parapsychology in a career that spanned six decades.