He is the world’s most famous and controversial street artist, everyone talks about him, his works reach astronomical figures. Yet we know nothing about Banksy. We do not know his face, his name, his date of birth. Whether it is the necessity of a writer who had to elude the police or a precise choice of ‘marketing’, this anonymity has two main consequences. It makes the phenomenon grow (think of how intriguing the game of Bansky’s identity is for the media), but above all it forces us not to talk about him, or at least, to talk about him only through his work. Work that began on the walls of Bristol in the early 1990s and found its final form, with the stencil technique, around the end of the decade. Banksy brings irony, biting satire to graffiti art, combining strong images with subversive, politically incorrect epigrams. While stencil is the main and best known form, Banksy’s art is not limited to mural painting: urban installations, large themed projects (such as the Dismaland park or the Walled Off Hotel), videos and even documentaries: his ‘Exit Through the Gift Shop’, suspended between reality and fiction, even received an Oscar nomination. In short, a well-rounded artist who has drastically revolutionised the world of Street Art. With what many now call the ‘Banksy effect’.