The Jack is a playing card that typically represents a young man or a servant in a deck of cards. It is one of the face cards, along with the Queen and King, and is usually valued between the 10 and Queen in most card games. The Jack is often depicted with a distinctive design, featuring a figure in a colorful outfit, and can vary in appearance depending on the suit: hearts, diamonds, clubs, or spades. In many card games, the Jack has special roles or powers. For example, in Poker, it can be part of a straight or a flush, while in Blackjack, it is worth 10 points. The Jack is also commonly used in games like Rummy and War, where its value can influence the outcome of the game.