 Slipknot was well received by critics and fans ; following its release the band gained popularity beyond their own expectations . Reviewing for AllMusic , Rick Anderson awarded the album four out of five stars , calling it " an auspicious debut " and proclaimed , " You thought Limp Bizkit was hard ? They 're The <unk> . These guys are something else entirely . And it 's pretty impressive . " The album 's aggression and heavy sound was widely praised ; Rolling Stone stated Slipknot is " metal with a capital m " , Kerrang ! added " raw and wholly uncompromising , each track delivered a powerful blow to the senses " , and in 2001 , Q magazine included the album in their list " 50 Heaviest Albums of All Time " . CMJ ranked the album as the twelfth highest " Editorial Pick " for 1999 . The album was also included in the book 1001 Albums You Must Hear Before You Die by Robert Dimery . 
