Much has changed since the 1960s when the first scholarship on contemporary graffiti appeared. The current paper is an attempt to outline and contextualize a number of recurrent challenges facing researchers of graffiti and street art, as well as developments that have taken place in this scholarly field. The aim of creating this outline is to assist in increasing the amount, and improving the quality, of future scholarship on graffiti and street art. We recognize, however, that although many of the challenges have at one time seemed insurmountable, over time they have lessened as graffiti and street art have grown as art movements, and because a small cadre of tenacious scholars focusing on graffiti and street art has published and taught ...