Avatar (2009 film) themselves to change into a Na'vi. "Avatar: A Confidential Report on the Biological and Social History of Pandora", a 224-page book in the form of a field guide to the film's fictional setting of the planet of Pandora, was released by Harper Entertainment on , 2009. It is presented as a compilation of data collected by the humans about Pandora and the life on it, written by Maria Wilhelm and Dirk Mathison. HarperFestival also released Wilhelm's 48-page "James Cameron's Avatar: The Reusable Scrapbook" for children. "The Art of Avatar" was released on , 2009, by Abrams Books. The book features
Avatar (2009 film) telling the story of the movie, but it would go into much more depth about all the stories that we didn't have time to deal with", saying that "Jim wants to write a novel that is a big, epic story that fills in a lot of things". In August 2013 it was announced that Cameron hired Steven Gould to pen four standalone novels to expand the "Avatar" universe. Cameron chose Ubisoft Montreal to create an "Avatar" game for the film in 2007. The filmmakers and game developers collaborated heavily, and Cameron decided to include some of Ubisoft's vehicle and creature