Complex sentence: The authors focus on the scene surrounding the heavy metal sub-genre black metal in Norway between 1990 and 1993, featuring bands such as Bathory, Black Sabbath, Mayhem, Mercyful Fate and Venom.
Split into simpler sentences: The authors focus on the scene surrounding the heavy metal sub-genre black metal in Norway between 1990 and 1993. The book features bands such as Bathory, Black Sabbath, Mayhem, Mercyful Fate and Venom.