A "standard" deck of playing cards consists of 52 Cards in each of the 4 suits of Spades, Hearts, Diamonds, and Clubs. Each suit contains 13 cards: Ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, King.
Historically, this is the French or Anglo-American deck. Other nations (e.g. Germany, Italy, Spain) have their own traditional decks which vary in suit and face values.
The suit of Spades:
The suit of Hearts:
The suit of Diamonds:
The suit of Clubs:
A traditional deck of cards usually also includes two Jokers:
There are a multitude of games that can be played with a standard deck of playing cards or a modified deck of playing cards. The games that have an entry on BGG are listed below. For other games an excellent website is Pagat. Traditional Card Games is a placeholder for all games not in the BGG database.