Everyone's talking about Banksy yet again, after the celebrated graffitist's clever rendition of Vermeer's "Girl with a Pearl Earring" on the side of a building. If you're struggling to understand what Banksy is about, consider this image of his 2010 work on the side of a building in San Francisco's Mission District: Arguably one of his most important works, "This'll look nice when framed" ironically points to Banksy's philosophy that art can exist outside of traditional venues like museums, galleries, or displays in people's homes.