When Pink Floyd released Dark Side of the Moon in 1973, it was a breakthrough for the band's label, Harvest Records. MDV/Flickr Creative Commons hide caption

itoggle caption MDV/Flickr Creative Commons

Posters of the iconic prism cover art from Pink Floyd's psychedelic masterpiece The Dark Side Of The Moon still adorn countless college dorm walls, 40 years after its release. Courtesy of the artist hide caption

itoggle caption Courtesy of the artist