Joseph Banks Rhine changed the face of Psychical Research (Parapsychology) when he took experimental research to a new level in the late 1920’s. It was then that he created the Zener cards, or ESP cards, as a new form of testing for Extra Sensory Perception.
ESP can be thought of as receptive psychic energy and can be simply defined as the ability to gain knowledge through means other than the five physical senses or by logical inference. ESP is broken into three categories; telepathy (awareness of information in the mind of another), clairvoyance (ability to receive information from objects or events from present time), and precognition (receiving information about objects or events in the future). Of these three, clairvoyance is the focus in basic ESP card...