"The Legend of Korra \u2014 The Art of the Animated Series, Book Four: Balance (ISBN 1-61655-687-0) is an art book written by Michael Dante DiMartino, Bryan Konietzko, and Joaquim Dos Santos that is based on the fourth book of The Legend of Korra. Similar to its three predecessors, the volume offers an inside look at the developmental and creative process that Book Four underwent prior to its release through a series of preliminary artworks supplemented by commentary from the creators."@en . "The Legend of Korra \u2014 The Art of the Animated Series, Book Four: Balance (ISBN 1-61655-687-0) is an art book written by Michael Dante DiMartino, Bryan Konietzko, and Joaquim Dos Santos that is based on the fourth book of The Legend of Korra. Similar to its three predecessors, the volume offers an inside look at the developmental and creative process that Book Four underwent prior to its release through a series of preliminary artworks supplemented by commentary from the creators. The last of four art books, one for each book in the series, it was released on September 15, 2015, and spans 184 pages."@en . . . . . . . . . "The Legend of Korra\u2014The Art of the Animated Series, Book Four: Balance"@en .