The aim of this book is to study the artistic and aesthetic expression of urban graffiti, specifically in the city of São Carlos/SP, based on contextualising the historical process of graffiti in Brazil and around the world, addressing its importance as a cultural movement, socio-cultural resistance, a vehicle for communication and a work of street art.We also researched the relationship between graffiti and Sanca Hip Hop, an event that has taken place every November since 2007, in partnership with the Black movement and the São Carlos/SP Hip Hop collective. In this study, we sought to contribute to an understanding of graffiti interventions. The theoretical framework of Lara (1996), Costa (1994, 2000) and Zamboni (2001) was used as a basis for the research.