Graffiti are informal, unofficial writings or drawings on surfaces not first produced for writing purposes, such as walls, pavement stones, rocks, and ceramics. Graffiti elucidate a great deal about life in the ancient world including topics such as social history, literacy, linguistic variation, sexuality, religious practices, and the use of space in ancient cities. These texts were composed in a variety of media: typically, they were scratched into the physical support, but paint, charcoal, and chalk were used as well. Graffiti have been found in many cities of the Greco-Roman world and in a variety of spaces including houses, tombs, religious spaces, and public areas. Since the texts were often inscribed or written on delicate surfaces such as wall plaster, only a small portion of the thousands that were once inscribed survive to the present.Graffiti (singular graffito) are informal, unofficial writings or drawings on surfaces not first produced for writing purposes, such as walls, pavement stones, rocks, and ceramics. A narrow definition of the word from its Italian root meaning “to scratch” only includes texts or drawings scratched into a hard surface such as plaster, stone, or marble. Because informal writings made with materials such as charcoal and chalk served the same purposes and were written in the same locations, and, in some instances, by the same authors as their inscribed counterparts, they are also included in the genre. The term graffiti, now used in English for writing of this sort from any era, was coined by .
