Forrás: Lead Guitar Domination. Electric Guitar sheet music. Guitar Tablature sheet music. Lead Guitar Domination. 4 DVDs with over 70 lessons.
Fordítás: Alexi Laiho, Gary Hoey, Alex Skolnick, Jeff Loomis, Marc Rizzo, Michael Paget, Kiko Loureiro és még sokan mások is bíznak John.