Skeptics have challenged the veracity of the claims of psychic readings, largely through disclosure of the methods. Psychologist Richard Wiseman's 2011 book Paranormality: Why We See What Isn't There noted the tricks of the trade, and Wiseman noted in a podcast appearance that the disclosure generated negative feedback from the psychic community.
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". Originally all the copies of the book were bought up by spiritualists and deliberately destroyed. 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.
The first thing you should know before going to a medium demonstration or private reading is that psychic mediums are basically a human telephone to the spirit world—they communicate with spirits. Unfortunately, they are a telephone without a dial. A psychic medium can’t just call up anyone from the spirit world with whom you want to talk. Instead, you get whoever is on the other end when the psychic medium “links” with the spirit world.
The techniques used in a love & relationships psychic reading vary depending on the psychic's abilities, preferences, and expertise. These techniques may include tarot cards, numerology, astrology, and other forms of divination. Love & relationship psychic guides rely on their clairvoyance, wisdom, and other medium senses to reveal information about your love life and romantic relationship to you.
In 1918, Joseph Jastrow wrote about the tricks of Eusapia Palladino who was an expert at freeing her hands and feet from the control in the séance room. In the séance room Palladino would move curtains from a distance by releasing a jet of air from a rubber bulb that she had in her hand. According to the psychical researcher Harry Price "Her tricks were usually childish: long hairs attached to small objects in order to produce 'telekinetic movements'; the gradual substitution of one hand for two when being controlled by sitters; the production of 'phenomena' with a foot which had been surreptitiously removed from its shoe and so on."