Book One: Air is the first season of the American animated television series The Legend of Korra created by Michael Dante DiMartino and Bryan Konietzko. Consisting of twelve episodes, it was initially intended to be a stand-alone epilogue miniseries sequel to Avatar: The Last Airbender before the series was expanded to an order of four seasons ("books") of fifty-two episodes ("chapters") in total. Book One: Air aired from April 14 to June 23, 2012, on the Nickelodeon channel in the U.S., and is broadcast in other countries beginning in June 2012.