This article is about the book. You may be looking for the Na'vi species.
The Na'vi is a book about the culture and the language of the Na'vi.
Background
This book is a detailed study of the species of the humanoid creatures that inhabit Pandora. A copy can be seen held up by Jake Sully before the destruction of Hometree. It was written by Phred Palmer, who in reality was a props buyer for the original film.
Trivia
- A similar book has been written for fans called James Cameron's Avatar: An Activist Survival Guide.