Posters are a democratic art form. It doesn’t matter what your budget is, you can have ‘em on your walls. Heck, even an unemployed middle schooler can stick a poster to a wall. But that cheapskate ...

You've seen her—the woman in the red-and-white polka-dot bandana and rumpled blue shirt, flexing her bicep and clenching her fist beneath the slogan "We Can Do It!" Maybe it was Beyonc é posing in ...