Edge sorting is a technique used in advantage gambling where a player determines whether a face-down playing card is likely to be low or high at casino table games by observing, learning, and exploiting subtle unintentional differences on the backs of the cards being dealt. The technique requires the player to trick the dealer into rotating specific, high-value cards so that they are distinguishable from lower-value ones after shuffling.

Phillip Dennis Ivey Jr. is an American professional poker player who has won ten World Series of Poker bracelets, one World Poker Tour title, and appeared at nine World Poker Tour final tables. Ivey is regarded by numerous poker observers and contemporaries as the best all-around player in the world. In 2017, he was elected to the Poker Hall of Fame.