Graffiti is an act of artistic expression for designers and artists to be able to showcase their work and even deliver a political message on public walls. It can be created through the use of spray paint, car paint, crayons, permanent ink and etching.
One common objection is that graffiti is not art because it is vandalism and hence a criminal act. While it is true that it can be vandalism and a criminal act, these facts would not seem to have a bearing on its status of being art. The mere fact that something is illegal or classified as vandalism hardly seems sufficient to make something fall outside of the realm of art. After all, imagine a state in which music was a criminal act and labeled as a vandalism of the public sound space. It would hardly follow that music would thus cease to be art. As such, this objection fails.