Regardless of hip-hop graffiti, gangs use their own form of graffiti to mark territories or serve as an indicator of gangs-related activities. In hip-hop culture, graffiti has evolved along with hip-hop music, B-boying and other elements. Graffiti fonts can also express basic social and political messages, and a whole genre of artistic expression is based on graffiti spray paints. In most countries, tagging or painting property without the owner's permission is considered defacement and vandalism, which constitutes a criminal offense. Graffiti writing Graffiti fonts (especially spray paint) and marker pens are the most commonly used graffiti materials in the world today. They have existed since antiquity, with examples from ancient Egypt, ancient Greece and the Roman Empire. Graffiti ranges from simple written words to elaborate murals. Graffiti fonts are scribbles or drawings that have been scribbled, scratched or usually painted illegally on a wall or other surface, often in public areas.
