A document of performance. This is the format of this thesis. Its main task consists in a search for the meanings of the graffiti from the standpoint views and depositions of seven young graffiti writers belonging to the upper-medium class of the southern area of the city of Rio de Janeiro. It also deals with the interpretation of the photographic images of the urban drawings as well as the analysis of the registries on the field diary. The major purpose in documenting the performance of Twig, Broz, Fel, Rio, Det´s, Zat and Dog was to discover the pedagogic reason behind those who choose this form of expression - the graffiti. We also tried to understand and to reveal how values, gestures and contents are maintained, updated and transmitted from each older and more experienced graffiti writers to the new ones establishing an ethos, which provides them with the means to become a part of the graffiti culture. It is exactly from the perspective of the transmission, of the modus adquirendi, from generation to generation that we search for the connections and the relationships between the urban graffiti and the educational process that involves the process of becoming graffiti writers. Our findings show a strong indication that such itinerary might be viewed as a pedagogy that, in this specific case, we designate as Pedagogy of the Spray.