Playing cards in Unicode Playing cards in Unicode Unicode is a computing industry standard for the handling of fonts and symbols. Within it is a set of images depicting playing cards, and another depicting the French card suits. The Miscellaneous Symbols block contains the following, at U+2660–2667: Unicode 6.0 added images for: Minor Arcana Tarot, the 52 cards of the standard French deck, 4 Knights, a back of a card, and two for black and white (or red) jokers in the block U+1F0A0–1F0FF. Unicode 7.0 added a specific red joker and twenty-two generic trump cards with the reference description being not the Major Arcana
Zener cards the experimenter picks up a card in a shuffled pack, observes the symbol, and records the answer of the person being tested, who would guess which of the five designs is on the card. The experimenter continues until all the cards in the pack are tested. Poor shuffling methods can make the order of cards in the deck easier to predict and the cards could have been inadvertently or intentionally marked and manipulated. In his experiments, J. B. Rhine first shuffled the cards by hand but later decided to use a machine for shuffling. In his book, "The New Apocrypha",