31 books
The Legend of Aang
The Last Airbender
The Art of the Animated Series
The Last Airbender: The Lost Adventures
The Last Airbender - The Promise, Part 2
The Last Airbender: The Promise, Part 3
The Last Airbender - The Rift, Part 1
The Last Airbender - The Rift, Part 2
The Art of the Animated Series Book Two: Spirits
The Last Airbender - The Rift
Turf Wars, Part Two
Turf Wars, Part One
The Last Airbender: The Promise, Part 1