What you have in your hands is the history of street art. The story of those who, in the suffocating climate of the large urban agglomerations, understood that in order to have the right to speak, it is necessary "to become a metropolis". own name, practicing the struggle of signs, contaminating lifestyles. Writing passionately recounts a journey into the color of street art starting from its beginnings, in the New York of the Seventies, up to the streets of the Italian cities of the late Nineties.