28 books • 4 series
Avatar: The Last Airbender - Team Avatar Treasury Library Edition (Avatar: The Last Airbender)
Avatar: The Last Airbender -- The Bounty Hunter and the Tea Brewer (Avatar: The Last Airbender)
The Legend of Korra: The Art of the Animated Series--Book One: Air Deluxe Edition (Second Edition)
Avatar the Last Airbender: North and South, Part Three (Avatar: The Last Airbender: North and South, #3)
Avatar: The Last Airbender - North and South Part Two (Avatar: The Last Airbender: North and South, #2)