The World of Ice and Fire, by George R.R Martin, Elio Garcia, and Linda Antonsson.

The premise: a learned historian has decided to write a full accounting of Westeros history from the earliest known records of the Dawn Age to the current era of rule by the fierce warrior King Robert Baratheon. Great attention to detail is paid not only to the broad strokes, but also the minor turns, including a thorough accounting of the oft mentioned “Dance of the Dragons”.

I was hoping for more Silmarillion and less Encyclopedia Brittanica, but judged purely as a history of the Seven Kingdoms it has been a solid read thus far.