Long ago, Swamp Thing was a tired, forgettable horror comic who's main claim to fame was being similar to Marvel's Man-Thing (another tired, forgettable horror comic that came out at pretty much the exact same time) . . . until a guy named Alan Moore took over writing it, and almost overnight turned it into one of the greatest comics of all time. After Alan Moore left, completely changing comics forever, Swamp Thing went back and forth between really good and not so good. It was one of the flagship titles of DC's Vertigo imprint, originally a place where DC's properties were reinterpreted to be more mature and horror tinged, and then became where creator-owned content went to thrive. However, with the New 52, Swamp Thing and a few others are back in the DC fold.
And Swamp Thing in the new 52 is really damn good. And a horror title. Long ago, before I was born, there were more to comics than just superheroes. War comics, true crime, romance, westerns, funny animals, comedy, horror . . . Swamp Thing, like Animal Man, is a genuinely disturbing comic at times, and that horror manages to make it thrilling. The art is also gorgeous at times, downright breathtaking.
I don't want to keep gushing. Just go out and read it.
Aaron "The Mad Whitaker" Bourque; and it's crossing over with Animal Man, so read that, too.