“Louder Than Hell: The Unflinching Oral History of Metal” by Jon Wiederhorn and Katherine Turman will be a comprehensive, informative and entertaining history of metal told by the people who created it. In addition to talking to a broad range of artists, the authors will interview industry professionals, music insiders, journalists, filmmakers, and others to reveal the social and musical history of the genre that has transformed so many lives over the decades. Harper Collins Publishers will release “Louder Than Hell” in 2011.