In 1986, it was unimaginable that death metal and grindcore music would ever impact popular culture. Yet this amalgam of hardcore punk and heavy metal would endure for years to come. Initially circulated through an underground tape-trading network by scraggly slackers, this new genre of music spread rapidly as bands rose from every corner of the globe. This exciting history, featuring an introduction by famed DJ John Peel, tells the two-decade-long history of these underground genres through the eyes and ringing ears of the artists, producers, and label owners - past and present - who propelled them. The book covers the scene in every dark detail, from its late '70s beginnings in the U.K.'s anarcho-punk scene, to the early '80s American version that featured unplayable - and to some, unlistenable - riffs, to legendary groups like Napalm Death and Godflesh, to the genre's alleged death and resurrection in the late 1990s.