most famous are: Riffle Stacking and Overhand Stacking. By Riffle Stacking the cheat stacks the card(s) while doing a Riffle shuffle. This form of stacking is the most difficult to master and the most respected under the card sharps and magicians. The Overhand Stacking method takes little practice, and is more likely to be done in a situation with a cheat. The cheat does a (what looks like) normal Overhand Shuffle. But while the cheat is shuffling they keep track of the cards they want to stack, and with a little practice they can manage to put the exact number of cards in between the cards they want to stack to make the next round of dealing favorable for the cheat. Even if a cheat deals themselves a powerful hand, they may not win much money if every other player has nothing, so often the cheat will stack two hands, with one player receiving a strong hand and the cheater getting an even stronger one. This is called a "double duke". A slight advantage for a cheat can be to know what cards are placed both on the top of the deck as well as the bottom card, so that information can then later be used to bottom deal or second deal themselves that card. The looking at the top or bottom card without the other players knowing or seeing it is called "Glimpsing" or "Peeking". There are a lot of methods for reaching the same goal. A method that is used most is called the "Shiner". A Shiner is a reflective object (such as coffee, a lighter, a blade etc.) that is placed under the deck, so when the cheat is looking into the shiner the bottom card is exposed, and every card that is dealt over the shiner can easily be peeked by looking in the shiner. One method of cheating that involves both great risk and great potential pay-off is the cold deck—so called because it has not been "warmed up" by play (and thus randomised). Such decks are usually pre-stacked, and are introduced either at the deal, after the real deck has been shuffled, or before the deal, where a card sharp will make a false shuffle using sleight of hand. The latter method may require collusion or a pass if the style of play or house rules call for a cut. The skill lies both