Street art
Street artists do not aspire to change the definition of an artwork, but rather to question the existing environment with its own language.
Skateboarder
Skateboarder in Grants Pass, OregonnThe first skateboards started with wooden boxes, or boards, with roller skate wheels attached to the bottom
Graffiti
Graffiti are writing or drawings that have been scribbled, scratched, or painted illicitly on a wall or other surface, often within public view.