from Slate Magazine:

Miles Davis' Kind of Blue, which was released 50 years ago today, is a nearly unique thing in music or any other creative realm: a huge hit—the best-selling jazz album of all time—and the spearhead of an artistic revolution. Everyone, even people who say they don't like jazz, likes Kind of Blue. It's cool, romantic, melancholic, and gorgeously melodic. But why do critics regard it as one of the best jazz albums ever made?