Out tomorrow (May 14th) is Louder Than Hell by authors Jon Wiederhorn and Katherine Turman. The tome is compiled from over 400 interviews chronicling "the history of heavy metal, told through the words of the men and women who created it, played it, re-invented it, and continue to rock it." Among the participants in Louder Than Hell are Ronnie James Dio, Ozzy Osbourne, Bruce Dickinson, Eddie Van Halen, Vince Neil, Tommy Lee, Lita Ford, Lars Ulrich, James Hetfield, Axl Rose, Slash, Corey Taylor, Dave Mustaine, Lemmy Kilmister, Dave Grohl, Trent Reznor, Slayer's Kerry King, Rob Zombie, and many, many more.

Co-author Katherine Turman says Louder Than Hell delves deep into the roots of metal -- including key players from the dawn of the 1970s: "In Louder Than Hell, we really went back to the beginnings of heavy metal, and that means that we have Blue Cheer, Alice Cooper, the Stooges, Ted Nugent. These bands might not be metal, but y'know -- Van Halen we have in there, Kiss. A lot of these bands influence metal bands coming up. Y'know, Slayer loved Kiss. So we really cover the gamut, from (Black) Sabbath in the '60s, to 2013 with Avenge Sevenfold."