42 Un-Covers: The Evolution of Playboy (NSFW)

For over six decades, Playboy Magazine has been creating memorable and collectible covers. The change in cover styles has mimicked the change in our culture– from the abstract, conceptual covers of the 50s, the suggestive covers of the 60s, the more sexually provocative covers of the 70s, to the more familiar celebrity and themed covers of the 80s, 90s and the covers of the current century still finding a voice.  Here are 42 great Playboy magazine covers.  We could have easily picked 84.  Let us know your favorites and which covers you think we missed.