If the past is prologue, then George R. R. Martin’s masterwork—the most inventive and entertaining fantasy saga of our time—warrants one hell of an introduction. At long last, it has arrived with The World of Ice & Fire.

This lavishly illustrated volume isa comprehensive history of the Seven Kingdoms, providing vividly constructed accounts of the epic battles, bitter rivalries, and daring rebellions that lead to the events of A Song of Ice and Fire and HBO’s Game of Thrones. In a collaboration that’s been years in the making, Martin has teamed with Elio M. García, Jr., and Linda Antonsson, the founders of the renowned fan site Westeros.org—perhaps the only people who know this world almost as well as its visionary creator.