Street art is visual art created in public locations for public visibility. It has been associated with the terms "independent art," "post-graffiti", "neo-graffiti" and guerrilla art.
Street art has evolved from the early forms of defiant graffiti into a more commercial form of art, as one of the main differences now lies with the messaging. Street art is often meant to provoke thought rather than rejection among the general audience through making its purpose more evident than that of graffiti. The issue of permission has also come at the heart of street art, as graffiti is usually done illegally, whereas street art can nowadays be the product of an agreement or even sometimes a commission. However, it remains different from traditional art exposed in public spaces by its explicit use of said space in the conception phase.
Street art is a form of artwork that is displayed in public on surrounding buildings, on streets, trains and other publicly viewed surfaces. Many instances come in the form of guerrilla art, which is intended to make a personal statement about the society that the artist lives within. The work has moved from the beginnings of graffiti and vandalism to new modes where artists work to bring messages, or just beauty, to an audience.
Some artists may use "smart vandalism" as a way to raise awareness of social and political issues, whereas other artists use urban space as an opportunity to display personal artwork. Artists may also appreciate the challenges and risks that are associated with installing illicit artwork in public places. A common motive is that creating art in a format that utilizes public space allows artists who may otherwise feel disenfranchised to reach a much broader audience than other styles or galleries would allow.
Whereas traditional graffiti artists have primarily used spray paint to produce their work, "street art" can encompass other media, such as LED art, mosaic tiling, stencil art, sticker art, reverse graffiti, "Lock On" sculptures, wheatpasting, woodblocking, yarn bombing and rock balancing.