With Slipknot's third studio album "Vol 3 The Subliminal Verses" released in 2004, is absolutely phenomenal. It's not on the level of Iowa, but it still exceeds the quality of their self titled album. With Slipknot getting more experimental, and expanding their comfort zone, Vol 3 has some of their best, most well known songs like Duality, Before I Forget, and Pulse Of The Maggots, as well as the quality of some of the lesser talked about tracks like The Nameless, Opium Of The People, The Virus Of Life. Fantastic album.