As we walk through the great cities of the world we witness several manifestations on their surfaces, they are the pichação, the graffiti and unfolding of their artistic universe. The present dissertation is based on the discussion about the role of these manifestations in urban space, their possibilities of breaking the rhythm of the daily life in this cities, their subversive expression and the reproduction of capitalist logic in the city. We consider that these urban interventions have in themselves the capacity to unveil the latent social contradictions that are spatialized in the metropolises, serving as a communication channel of the subjects who practice it with urban society.