You'd be forgiven for thinking that the American punk rock band Black Flag's logo is nothing more than a bunch of black bars or is perhaps four distinct flag-shaped objects but you'd also be wrong. The band's logo is one of those once you see it, you can't unsee it examples, and is a testimony to subtle graphic design. Formulated by guitarist Greg Ginn's brother Raymond Pettibon, the logo is actually a singular flag that is waving in the wind hence the disjointed bars, which are supposed to represent ripples. Though it seems obvious in retrospect, it's amazing how many people don't perceive it naturally, despite the logo appearing on basically all of their albums.
