Theodricus Monachus wrote this book in Norway in the latter half of the twelth century. The book is dedicated to the Archbishop Eystein(1161-1188), and the viewpoint is clearly ecclesiastical. That is especially reflected in his treatment of Norway's last pagan ruler Håkon Jarl. Theodoricus is proud of his classical education and likes to show it. The book is full of digressions; he frequently cites roman scholars and contrasts Roman rulers with Norwegian ones. Håkon Jarl is for exampel compared with Romes last pagan ruler Julian the Apostate. Though Theodoricus is a bit prejudice and his digressions are a bit annoying; what really lifts this book is the work put in by David and Ian McDougall, the translaters. They have done a great job. The explanetory notes fill half this book and are really helpful in understanding Theodoricus frequent references and the context which he writes in. If you are interested in the early sources of viking and Norwegian history this book is worth a read.