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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Successful early experiments in telepathy (1882-1888) carried out by SPR researchers with a family of five girls in the north of England, which were eventually discredited by revelations of cheating.  
British psychologist (1921-1988) who during the 1960s and 1970s carried out groundbreaking experiments in macro-psychokinesis (PK), based on the nineteenth century activity of ‘table tipping’. 
Argentinian factory worker and martial arts teacher who took part in recent successful recent psychokinesis experiments. 
Study on mediumship by an Italian psychiatrist and psychical researcher (1852-1929), focusing in particular on Eusapia Palladino, with the emphasis on clinical and psychological aspects. 
Charles Bailey (1870-1947) was an Australian medium known for an ability to produce ‘apports’ of great variety. Investigations provide some support for his genuineness, but he was also often caught in dubious circumstances.