Joel McIver, author of " The Complete History of Black Sabbath"

We recently spoke with author Joel McIver, about his new illustrated history of the legendary Black Sabbath, The Complete History of Black Sabbath. McIver has also writtten books about Metallica, Randy Rhoads, Slipknot and Glenn Hughes.  We asked Joel "Five Questions" about his book about one of the originators of heavy metal music and here's what he had to say!