A standard poker deck consists of 52 cards, including four suits: hearts, diamonds, clubs, and spades.Factors influencing the choice of a poker deck include design, production method and material, suit marking and rank visibility, and size.Most poker games use a French deck of 52 cards, but variations like Seven Card Stud or Omaha Hi-Lo may involve different quantities.The back of a playing card, called the backside, should have a solid color or casino logo to prevent card marking.