This handsome hardcover contains hundreds of art pieces created during the development of the show's fourth and final season, complete with creative commentary from DiMartino and Konietzko. This celebrated second edition also includes pages of new sketches from the original creative team and a brand-new foreword by Korra voice actor Seychelle Gabriel! This is an intimate look inside the creative process that brought a new generation of Avatar heroes to life, revisited for the show's anniversary!