From the heat of the desert southwestern US comes Book Of Numbers. The group is a Power Doom Metal band in the vein of Ozzy, Dio, Sabbath, and Rainbow based in Phoenix, Arizona. Book Of Numbers was founded in 2019 by Brent Barker (guitars) and Kevin Schuhmacher (vocals) while rehearsing for a Black Sabbath tribute band. For fans of: Ozzy, Dio, Black Sabbath, Rainbow.