In October 2015, Tool’s Maynard James Keenan announced that he was working on his authorized biography. The news came as a big surprise, and not just because Keenan was thought to be immersed in the band’s follow-up to 2006’s 10,000 Days when he wasn’t playing dates with his side band Puscifer, or laying the groundwork for new material with his other platinum outfit, A Perfect Circle.
