World of Ice and Fire

There is over 300 pages of small print information about George RR Martin's World of Ice and Fire.  It is a reference work where you can go if you don't know where Dragonstone is, if you want to know more about the First Men or just about anything else.  For instance, the First Men came from Essos to Westeros via a land bridge which has now disintegrated into the sea.  They started fighting with the Children of the Forest cutting down their Weirwoods but eventually teamed up to fight the White Walkers during the Long Night.  This lead to the creation of the Wall.
Thousands of years later came the Andals (Vikings), in long ships who in turn were fleeing from the Valyrians and their dragons.  Much later Valyria was wiped out by the Doom, a cataclysmic volcanic event but not before one family group, the Targaryens, made it to the Valyrian outpost of Dragonstone.

A4 folio style with illustrations