4 Years and 12 Walls The project was originally called  4 Years & 40 Walls. It cataloged the graffiti inside Philadelphia's Spring Garden School from the first time I shot there in 2011 to the last time in 2015. For a few years, it comprised its own website and attracted at least some attention. Besides the Philly Voice, the site was covered by Philadelphia Weekly, Hidden City Philadelphia, and Temple News, a Temple University student magazine. While the original site did indeed feature 40 walls, I've reduced it to 12 here for the sake of brevity. Have a look: