Art and Street: Why the Origin and Typology of Informal Mural Painting in Iran

The present study deals with the origin and typology of graffiti or informal murals in Iranian cities. In this research, graffiti refers to all the images or letters used in public places on surfaces such as walls or stairs, which are visible to the public (sometimes invisible). This research has been conducted for the first time by the method of contextual theory and for this purpose in a period of 5 years (from 1392 to 1397) with 31 unofficial murals in the cities of Tehran, Shiraz, Mashhad, Tabriz, in-depth interviews have been conducted. The findings of this study indicate that the phenomenon of informal graffiti can be divided into two types.