A deck of cards is a set of playing cards used for various games and activities. Typically, a standard deck consists of 52 cards divided into four suits: hearts, diamonds, clubs, and spades. Each suit contains 13 ranks, including numbered cards from 2 to 10, and face cards: jack, queen, and king, along with an ace. In addition to the standard cards, many decks include two jokers, which can be used as wild cards in some games. Decks can vary in design, size, and theme, catering to different games like poker, bridge, or solitaire.