With over forty years of history, Black Sabbath revolutionized the history of rock giving the initial impetus for creation and propagation of heavy metal. In four decades of success, the band led by Tony Iommi has its recognition with classics in the world of metal, such as "Sabbath Bloody Sabbath "and" Paranoid ". The Sabbath had several members, but it was in the voice and figure of the eccentric Ozzy Osbourne that the group gained weight in music scene. In this unauthorized biography, the reader will know the whole history of the band that colored rock with more obscure shades and lyrics that speak without fear of the world's darkness. Also brings the complete discography, trivia and amazing pictures.