From back of the book:
"THE ESSENTIAL [i]13th AGE[/i] GAME MASTER RESOURCE
"The 13th Age Game Master's Screen and Resource Book features incredible new art from 13th Age lead artists Aaron McConnell and Lee Moyer, a GM's resource book, and a fold-out map of the Dragon Empire.
"The screen: three-ply and portrait-oriented, with the essential information a 13th Age GM needs to run the game, presented in an easy-to-reference format.
"The book: 64 pages of GM advice, tools, and variant rules ...
"The map: A 22" by 17" full-color rendition of Lee Moyer's map of the Dragon Empire. This time with roads!
"With the 13th Age Game Master's Screen and Resource Book at your table, your GM's arsenal is complete!*
"* But please keep buying more 13th Age books. We have baby owlbears to feed."