The card deck

First let's take a look at the card deck.
52 cards - 13 values - 4 suits (clubs, diamonds, spades and hearts)

   

Cards

A Ace is the highest card in poker
K King
Q Queen
J Jack
10 Ten
9 Nine
8 Eight
7 Seven
6 Six
5 Five
4 Four
3 Three
2 Lowest card in poker.

So every card deck has 4 of each value in it. The suits have no value in poker, the 9 of clubs has de same value as the 9 of hearts