
To write the book, Martin enlisted the aid of Elio García and Linda Antonsson, founders of, the largest A Song of Ice and Fire community and online concordance of information on the series on the internet. Martin announced on his website that he had signed a contract with Bantam Books for The World of Ice & Fire on September 2, 2006. The World of Ice & Fire was released on October 28th, 2014.

In the United States the book was published by Bantam, in the United Kingdom by Harper Voyager. Martin in collaboration with Elio Garcia and Linda Antonsson. The World of Ice & Fire: The Untold History of Westeros and the Game of Thrones is a companion volume to A Song of Ice and Fire, provisionally known as a "world book". For the mobile companion guide, see A World of Ice and Fire.

For the in-universe work of Maester Yandel, see The World of Ice and Fire (Yandel).

This article is about the companion book to A Song of Ice and Fire.
