Graffiti is a form or styles of ART that gained prominence in the late 70's in New York City. However, communication through art displayed in public locations is as old as cavemen painting on their caves. Graffiti art has moved from being viewed as an illegal activity (i.e. vandalism) towards a more socially accepted form of art that can be purchased for decoration (i.e. Facebook Headquarters is painted by artist David Cho).
"Aside from urban buildings, street furniture and public transport, the graffiti artists created works on canvas, paper or street hoardings which are now prized by a growing number of collectors ... In two years, graffiti artists have seen their prices double: is the street phenomenon moving to the auction room? "
- Artprice.com, "Graffiti art- From the street to the museum"
"This is the most culturally significant art movement of the second half of the 20th century, since Cubism and Surrealism. This art is very powerful, engaged and direct. After all these years I am still moved by its strength, and passion.”
--Henk Pijnenburg, collector who started buying street art 25 years ago