^ Joseph Jastrow. (1935). Patience Worth: An Alter Ego in Wish and Wisdom: Episodes in the Vagaries of Belief. D. Appleton-Century Company. pp. 78–92. Lyon Sprague de Camp. (1966). Spirits, Stars, and Spells. New York: Canaveral. p. 247. Robert Goldenson. (1973). Mysteries of the Mind: The Drama of Human Behavior. Doubleday. pp. 44–53. Milbourne Christopher. (1970). ESP, Seers and Psychics. New York: Crowell. pp. 128–29
Keen is a Leader in Psychic Advice Keen also has many psychic reading options outside of spiritual healing readers. If you have questions about your love life or relationships, you can get a love reading from a Keen psychic. If you are interested in knowing your future through cards, Keen has online tarot readers, cartomancers, and angel card readers who are proven experts in that medium. If you wish for an astrology reading, Keen has astrologers who specialize in subjects such as Vedic astrology, Mayan astrology, and Chinese astrology. No matter what you're looking for, Keen.com can get you in touch with specialists in all of these very diverse and enlightening subjects.

According to the magician John Booth the stage mentalist David Devant managed to fool a number of people into believing he had genuine psychic ability who did not realize that his feats were magic tricks. At St. George's Hall, London he performed a fake "clairvoyant" act where he would read a message sealed inside an envelope. The spiritualist Oliver Lodge who was present in the audience was duped by the trick and claimed that Devant had used psychic powers. In 1936 Devant in his book Secrets of My Magic revealed the trick method he had used.[159]
There are now thousands of types of tarot decks to choose from, Hello Kitty to zombies. A traditional deck has 22 Major Arcana (or trumps) which are the archetypal images. There are 56 Minor Arcana cards, sixteen Court or Personality cards; the Kings, Queens, Princes and Pages, just like modern playing cards. There are four elements or suits: Fire, Earth, Air and Water, with 10 cards in each. There are no inherently negative cards.
The psychical researchers Eric Dingwall and Harry Price re-published an anonymous work written by a former medium entitled Revelations of a Spirit Medium (1922) which exposed the tricks of mediumship and the fraudulent methods of producing "spirit hands".[132] Originally all the copies of the book were bought up by spiritualists and deliberately destroyed.[133] In 1923, the magician Carlos María de Heredia revealed how fake spirit hands could be made by using a rubber glove, paraffin and a jar of cold water.[134]
In the 1930s Harry Price (director of the National Laboratory of Psychical Research) had investigated the medium Helen Duncan and had her perform a number of test séances. She was suspected of swallowing cheesecloth which was then regurgitated as "ectoplasm".[148] Price had proven through analysis of a sample of ectoplasm produced by Duncan, that it was made of cheesecloth.[149] Helen Duncan would also use a doll made of a painted papier-mâché mask draped in an old sheet which she pretended to her sitters was a spirit.[150] The photographs taken by Thomas Glendenning Hamilton in the 1930s of ectoplasm reveal the substance to be made of tissue paper and magazine cut-outs of people. The famous photograph taken by Hamilton of the medium Mary Ann Marshall depicts tissue paper with a cut out of Arthur Conan Doyle's head from a newspaper. Skeptics have suspected that Hamilton may have been behind the hoax.[151]
The exposures of fraudulent activity led to a rapid decline in ectoplasm and materialization séances.[199] Investigator Joe Nickell has written that modern self-proclaimed mediums like John Edward, Sylvia Browne, Rosemary Altea and James Van Praagh are avoiding the Victorian tradition of dark rooms, spirit handwriting and flying tambourines as these methods risk exposure. They instead use "mental mediumship" tactics like cold reading or gleaning information from sitters before hand (hot reading). Group readings also improve hits by making general statements with conviction, which will fit at least one person in the audience. Shows are carefully edited before airing to show only what appears to be hits and removing anything that does not reflect well on the medium.[200]
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