Reynolds, Simon: Rip It Up and Start Again: Postpunk 1978-1984, Penguin Books, February 2006, pgs.
They were initially influenced by 1970's artrock and postpunk acts like David Bowie, Joy Division, Magazine and Ultravox but adopted a more sophisticated synthpop and new romantic style on their most successful albums Uppdrag i Gèneve and En plats i solen.
Rip It Up and Start Again: Postpunk 1978–1984 is a book by Simon Reynolds on the music genre post-punk.