Graffiti has always been a contentious topic in our society. In many cases, graffiti is an act of petty vandalism. But on the other hand, walls and murals offer a broad canvas for artists that like to think big.

Graffiti has always been a contentious topic in our society. In many cases, graffiti is an act of petty vandalism. But on the other hand, walls and murals offer a broad...