 MEMO rescues the technique of painting used by Orion at the beginning of his artistic activity, when he was walking through the streets of the city with a backpack full of sprays.They are, as Orion calls them, "collective self-portraits" of the numerous encounters that the street has given him.They are the intersubjective memory of the face, of the other as a mirror of exchange in which the artist reflects his experiences in the street.