The biggest problem with de Gebelin’s work is that there was really no historical evidence to support it. However, that didn’t stop wealthy Europeans from jumping onto the esoteric knowledge bandwagon, and by the early nineteenth century, playing card decks like the Marseille Tarot were being produced with artwork specifically based on deGebelin’s analysis.
If you've decided to hire the services of a medium, for whatever reasons, there are a few things you should keep in mind in order to guarantee you get the best session possible. First of all, try to come in with an open mind. You may be feeling skeptical, but if you let that be an issue, it can certainly color your results. A corollary to that is that it's important to be honest about why you're there. If you're only trying to debunk things, or to expose the medium as a fraud, go ahead and admit it up front. A medium who's legitimate will probably still be willing to work with you.
"Pull a card and put it under your pillow at night. Let the energy of that card seep into your dreams," she said. "Wake up in the morning; observe the card. Read about what its different meanings are. Is it the major arcana or minor? Is it connected to one of the elements - fire (wands), water (cups), air (swords), or earth (pentacles)? Then notice during the day what happens that might have been a sign from the cards. It's pretty cool when you start connecting the messages."
Colin Fry was exposed in 1992 when during a séance the lights were unexpectedly turned on and he was seen holding a spirit trumpet in the air, which the audience had been led to believe was being levitated by spiritual energy.[183] In 1997, Massimo Polidoro and Luigi Garlaschelli produced wax-moulds directly from one's hand which were exactly the same copies as Gustav Geley obtained from Franek Kluski, which are kept at the Institute Metapsychique International.[184]
Let’s say you want to find a new romantic relationship. Instead of pulling a card to predict whether Prince Charming is just around the corner and either being blissfully excited or bitterly disappointed, you consult the cards to discover how you can attract love (and keep it!). You draw the Ten of Cups, and upon seeing the happy family dancing under the rainbow in the card, you are reminded that to attract love, you need to set a clear vision of what it is you want to attract.  
The psychologist and psychical researcher Stanley LeFevre Krebs had exposed the Bangs Sisters as frauds. During a séance he employed a hidden mirror and caught them tampering with a letter in an envelope and writing a reply in it under the table which they would pretend a spirit had written.[68] The British materialization medium Rosina Mary Showers was caught in many fraudulent séances throughout her career.[69] In 1874 during a séance with Edward William Cox a sitter looked into the cabinet and seized the spirit, the headdress fell off and was revealed to be Showers.[70]
The physicist Kristian Birkeland exposed the fraud of the direct voice medium Etta Wriedt. Birkeland turned on the lights during a séance, snatched her trumpets and discovered that the "spirit" noises were caused by chemical explosions induced by potassium and water and in other cases by lycopodium powder.[160] The British medium Isa Northage claimed to materialize the spirit of a surgeon known as Dr. Reynolds. When photographs taken of Reynolds were analyzed by researchers they discovered that Northage looked like Reynolds with a glued stage beard.[161]
Senses used by mental mediums are sometimes defined differently from in other paranormal fields. A medium is said to have psychic abilities but not all psychics function as mediums. The term clairvoyance, for instance, may include seeing spirit and visions instilled by the spirit world. The Parapsychological Association defines "clairvoyance" as information derived directly from an external physical source.[37]
Two, some psychic mediums can hear spirits. In this method, the spirits actually talk to the psychic medium verbally. The psychic medium may hear the communication in their mind (like hearing thoughts), or they may hear the spirit the way they would hear you or I talking to them. Unfortunately, some spirits are not the greatest communicators and what the psychic medium actually hears may sound more like a faint radio station than a clear telephone signal. This is one reason why some readings are so detailed and accurate while others are sketchy. Just try talking to someone using a cheap set of walkie-talkies and you’ll experience what it’s like chatting with a weak communicator from the spirit world.
“The imagery was designed to reflect important aspects of the real world that the players lived in, and the prominent Christian symbolism in the cards is an obvious reflection of the Christian world in which they lived,” he adds. As divinatory usage became more popular, illustrations evolved to reflect a specific designer’s intention. “The subjects took on more and more esoteric meaning,” says Wolf, “but they generally maintained the traditional tarot structure of four suits of pip cards [similar to the numbered cards in a normal playing-card deck], corresponding court cards, and the additional trump cards, with a Fool.”
Often, I will do a Skype call with my best friend in the evening, when she is off work. She lays the cards out for me on her Turkish scarves then - ta-da! - the fortune-telling happens. Because she knows me so well, since we were pip-squeaks, it is helpful to have her insight on what each card forebodes. After the reading, I get to process it all with my pal then take it with me into my dreams.