LC is a vibrant mix of differing styles and surprising influences. It blended liberal doses of ska, reggae, funk, pop, jazz, and old fashioned rockabilly into the usual Clash rock sound, which resulted in a more mature album both musically and lyrically. I'll spare you any further boring deconstruction and just say that this is the only Clash album you’ll ever need. Emphasis on the 'need.' It's essential.