Similarly, a card called Vietnam Connect shows post-card-like images from that country; one called "Mi Paisita" shows a map of Central America with countries coded by flag design.

ISO 3166-2 is part of the ISO 3166 standard published by the International Organization for Standardization (ISO), and defines codes for identifying the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

ISO 3166-2, Codes for the representation of names of countries and their subdivisions - Part 2: Country subdivision code, defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

The standard defines codes for names of principal subdivisions of all countries coded in ISO 3166-1.