Graffiti (plural of graffito: “a graffito”, but “these graffiti”) are writing or drawings that have been scribbled, scratched, or painted, typically illicitly, on a wall or other surface, often within public view. Graffiti range from simple written words to elaborate wall paintings, and they have existed since ancient times, with examples dating back to Ancient Egypt, Ancient Greece, and the Roman Empire.
Graffiti have become a common stepping stone for many members of both the art and design communities in North America and abroad. Within the United States graffiti artists such as Mike Giant, Pursue, Rime, Noah, and countless others have made careers in skateboard, apparel, and shoe design. (From Wikipedia)