1. Joy Division, “Unknown Pleasures’’ (1979) This cover is the epitome of post-punk cool. Credited to Peter Saville, Chris Mathan, and Joy Division itself, it’s a representation of pulses coming from the first pulsar discovered (pulsars are neutron stars emitting electromagnetic radiation). The minimal, mute graphic perfectly captured the moment’s icy aloofness concealing ardent romantic…
SOURCE: Boston Globe at 12:03PM on April 14, 2011