Street art is inherently related to creating art in public and lively locations in an effort to maximize visibility, sometimes in order for the artists to make a bigger name for themselves and other times to spread a socio-political message across the urban environment and make a point. Even though we are mostly used to seeing street art on the surfaces of buildings or subways, street signs are, also, another common target. They are prominent and, thus, the perfect canvas for many artists. In most cases, though, it is the aesthetic value and historic connotations of utilizing street signs and not actual functioning street signs that inspire contemporary art. Graffiti on street signs is a form of street art that involves the use of street signs as a canvas for artistic expression. While some people view it as a form of vandalism, others see it as a legitimate form of artistic expression. From a legal perspective, graffiti on street signs is generally considered vandalism and is therefore illegal. However, some cities have designated certain areas where graffiti and street art are allowed, such as designated graffiti walls or public art installations. When it comes to street signs, some artists use them as a form of commentary on the urban environment or to convey a message. Others use street signs as a way to play with the existing text or imagery, creating new meanings or juxtapositions. Despite the controversy surrounding graffiti on street signs, it is undeniable that it has become a significant part of urban culture and has inspired countless artists around the world. Graffiti art and pop art both incorporate elements of city life, and city street signs are a common feature in both styles. City street signs can be found in a variety of shapes, sizes, and colors, and can be used to convey a range of messages, from the practical (such as indicating the name of a street or the speed limit) to the abstract (such as representing the energy and excitement of urban life). In graffiti art, street signs are often used as a canvas for tagging, a form of graffiti that involves writing one's name or signature in a stylized way. Graffiti artists may also use street signs as a way to communicate messages or ideas to their fellow artists or the wider community. In pop art, city street signs may be incorporated into larger works that explore the themes of urban life and the commercialization of public spaces. Pop artists like Andy Warhol and Roy Lichtenstein used street signs as a way to comment on the ways in which consumer culture shapes our experience of the city.