Black Sabbath FAQ - All That's Left to Know on the First Name in Metal (Faq Series)
Martin Popoff has written 30 books on heavy metal, classic rock, and record collecting, including biographies on Rush, UFO, Rainbow, Judas Priest, Deep Purple, Blue Oyster Cult, and Black Sabbath. At approximately 9,000 published record reviews, Martin has (unofficially) written more record reviews than anybody living or passed on. Martin is currently working on a 16-episode documentary on heavy metal for VH1 Classic.