Not all graffiti is solely centered on colorful artistic expression: some street artists such as Michael Aaron Williams (and Banksy, of course) have political agendas that bring to light certain deplorable conditions in society. In this case, Michael Aaron Williams focuses on poverty and the homelessness in cities around the world.
Hailing from Knoxville, Michael Aaron Williams' work has shown up in other parts of the globe such as Austria, Berlin and Australia. Made to blend in with its surroundings, his street art allows you to consciously ignore the artistic representations of the homeless just as we do real homeless people.
Michael Aaron Williams fastens his work on walls using only duct tape to comment on the impermanence of art and life.