Graffiti : peintres et vandales

“Graffiti is something you experience: you can’t buy it, you can’t sell it. It’s a bit like sex,” says graffiti artist Sore. This means of expression, adopted by groups on the fringes of society, is moving from the street into the most popular art galleries. How has this culture, until now marginalized and subject to prosecution, become the object of unprecedented speculation on the international art market ?