Overview

A card is a small, usually rectangular piece of material used for communication, identification, entertainment, commerce or instruction. Cards may be made from paper, cardstock, plastic or composite materials and range from simple handwritten notes to mechanically encoded payment cards. They form a broad class of everyday objects united by portability and a surface for information or imagery.

Common types and characteristics

Typical categories include:

  • Playing cards — used for games, magic and collecting; see playing card.
  • Greeting cards — folded or flat printed cards for social messages and ceremonies.
  • Business and calling cards — compact personal identifiers exchanged in professional contexts.
  • Payment and ID cards — credit, debit and identity cards with magnetic stripes, chips or printed data.
  • Trading and collectible cards — produced in series for collecting and playing, such as sports or game cards.
  • Educational cards — flashcards and charts used for learning and memorization.

History and development

Cards have diverse origins. Gaming cards are believed to have originated in Asia and later spread to Europe, evolving in design and suits. Printed greeting cards became popular with advances in mass printing during the 19th century. Business, payment and identity cards developed alongside modern commerce, printing and security technologies, shifting from simple paper to plastic and electronic formats.

Uses and cultural importance

Cards serve practical, social and recreational roles. Playing cards underpin many traditional and competitive games; greeting cards mediate social rituals; business cards facilitate professional connections; and payment/ID cards support financial transactions and access control. Collecting cards has spawned communities and secondary markets, while cards also appear as cultural artifacts in art and literature.

Distinctions and notable facts

Cards differ by durability, security features, and symbolic design. Some carry encoded data for machines, others prioritize visual or sentimental value. Innovations such as contactless chips, holograms and specialized coatings reflect the balance between functionality and aesthetics in card design.