The Legend of Korra ran for 52 episodes ('chapters'), separated into four seasons ('books'), from April 14, 2012, to December 19, 2014.
A sequel to DiMartino and Konietzko's previous series Avatar: The Last Airbender, which aired from 2005 to 2008, the series is animated in a style strongly influenced by anime. The Legend of Korra, also known as Avatar: The Legend of Korra, is an American anime-influenced animated television series created by Michael Dante DiMartino and Bryan Konietzko for Nickelodeon.