What Is Street Art?

What is street art? This paper offers a definition of street art as an art kind or art form based on its essential value: its subversiveness. It argues that street art is essentially subversive in virtue of using public space as a technical resource. By hijacking a portion of the urban landscape with its colourful forms and witty designs, street art challenges familiar ways of practising the city, while creating a ‘temporary autonomous zone’ of free expression. There, corporate control over the city’s visible surfaces is ridiculed and people reclaim their right to use the city. In this sense, street art functions as a carnivalesque tactic of social resistance, favouring the emergence of alternative ways to imagine our urban life and our uses of public space. By considering its subversiveness, one can also explain how street art (i) significantly differs from official public art; (ii) includes graffiti as its original and most radical style.