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) was then the biggest second weekend of all time. The film experienced another marginal decrease in revenue in its third weekend, dropping 9.4% to $68,490,688 domestically, remaining in first place at the box office, to set a third-weekend record. "Avatar" crossed the $1 billion mark on the 19th day of its international release, making it the first film to reach this mark in only 19 days. It became the fifth film grossing more than $1 billion worldwide, and the only film of 2009 to do so. In its fourth weekend, "Avatar" continued to lead the box office domestically, setting a