On July 27th, the long in the works biography of Ronnie James Dio, which hew was working on at the time of his death will be released. Coming from Permuted Press in the U.S. and Canada and Constable in the U.K. and co-written with British music journalist Mick Wall and Dio’s widow and longtime manager Wendy Dio, “Rainbow In The Dark: The Autobiography” is now available for pre-order at the link below. Dio, the voice of his solo band, Elf, Rainbow, and Black Sabbath is arguably the greatest metal singer in history, and propelled the genre forward with his talents, and his representing metal culture to the masses.