Tool's 'Lateralus' (2001) is critically lauded progressive metal. It features intricate time signatures, vigorous drumming, gripping guitar riffs, and Maynard James Keenan's exemplary vocals. The album communicates spiritual and personal themes of nature and progress, while some lyrics draw from the Fibonacci and other numerical sequences. Notable tunes include the monumental title track and the GRAMMY-winning "Schism". 'Lateralus' remains an iconic classic amongst Tool and metal buffs worldwide. This double vinyl four-picture disc release includes a unique picture on each side and is housed in a plastic gatefold featuring holographic foil.