Graffiti is a form of visual art that involves creating images or text on public surfaces, often using spray paint, markers, or other materials. It can be found on walls, buildings, and even trains. While some view it as a form of vandalism, others see it as a legitimate art form that expresses social or political messages. The origins of graffiti date back to ancient civilizations, where markings were made on walls to convey information or tell stories. Today, graffiti is often associated with urban culture and can be seen in cities worldwide. Notable graffiti artists, such as Banksy, have gained international recognition for their thought-provoking works.