Book excerpt: (Guitar Educational). More than 75 heavy metal instructional guitar columns from the pages of Guitar World magazine! The ultimate collection of teachings from some of the most respected giants of the metal universe, including Dimebag Darrell, Kerry King, Slash, Marty Friedman, and more! Topics covered include: using chord slides to add aggression to a riff with Megadeth's Dave Mustaine; using string skipping to break out of your comfort zone with Metallica's Kirk Hammett; harmonic screams with Pantera's Dimebag Darrell; the proper way to play "Paranoid" with Black Sabbath's Tony Iommi; pre-gig warm-up strategies with Slash; using strummed octaves to create a haunting vibe with Testament's Eric Peterson; and more!