If you've never heard of poker, then you probably live on an alien planet. Poker is by far the most popular card game on the planet. To play poker, players bet on the the value of their 'hand' or combination of cards in their possession. Bets are placed into a location central to all players, called the 'pot', and it is awarded to the winner at the end of the hand. The winner is determined by who holds the highest valued hand according to an established hierarchy of ranking combinations of cards. A winner can also be established if all other players elect to not match the bet of a player.