Book excerpt: The definitive oral history of heavy metal, Louder Than Hell by renowned music journalists Jon Wiederhorn and Katherine Turman includes hundreds of interviews with the giants of the movement, conducted over the past 25 years. Unlike many forms of popular music, metalheads tend to embrace their favorite bands and follow them over decades. Metal is not only a pastime for the true aficionados; it’s a lifestyle and obsession that permeates every aspect of their being. Louder Than Hell is an examination of that cultural phenomenon and the much-maligned genre of music that has stood the test of time. Louder than Hell features more than 250 interviews with some of the biggest bands in metal, including Black Sabbath, Metallica, Megadeth, Anthrax, Slayer, Iron Maiden, Judas Priest, Spinal Tap, Pantera, White Zombie, Slipknot, and Twisted Sister; insights from industry insiders, family members, friends, scenesters, groupies, and journalists; and 48 pages of full-color photographs.