The World of Ice and Fire will be a source book for “A Song of Ice and Fire”. Joining Mr. Martin in creating this work are Elio M. Garca, Jr. and Linda Antonsson (the founders and maintainers of Westeros.org). The book will a lavishly illustrated, in-depth guide to the history, geography, cultures, religions, and characters featured in the series.

Though there is no fixed release date, it will not be published until some time after the release of A Dance with Dragons.