It's been a busy last few weeks. You might have been caught up in the Hillary Clinton email brouhaha, binge watching House of Cards or preparing for March Madness. While you're bracket might already be busted -- don't worry, mine is too -- you can make up for it by busting out some art knowledge to your friends. We can help with that.
When something is removed sometimes there can be trace evidence of its presence. The outline on a bare wall where a painting hung for decades, the impression left in a rug where a chair has sat for weeks, a blurred circle on a tabletop where a glass stood for moments. For this instance that which is left behind are thumbtacks upon the surface of telephone poles on any given street.