Book of Hours is a Swedish band that begain 1996 when Henrik Johansson (drums) and Mattias Reinholdsson (bass) got together with Per Broddesson (guitar). For their first album in 1999, the group was augmented by Mikael Zell (guitar), Ulf Nygårds (keyboards), and Stefan Zell (vocals). Many personnel changes followed, including the addition of singer Anni Thulin and a succession of guitarists.