The Art of Uncharted 2: Among Thieves is an official art book produced by Naughty Dog alongside the game. Published by Ballistic Publishing, it is 272 pages and is available in soft cover, hard cover, and folio (limited to 200, signed certificate) editions. The book was released on April 2, 2010.
The book lavishly illustrates the game's visual design via conceptual art, partial and final renders from the game with commentary from many designers from the studio.
The entire book may be previewed on the Ballistic Publishing web site.
CGSociety.com has a two page Game Production Focus article which gives an overview of the book contents and images.
A book review blog has a brief overview accompanied by many pictures.
Excerpts from the book are cited for Uncharted 2 Development.
A Naughty Dog employee unboxing and tallking about The Art of Uncharted 2 http://www.youtube.com/watch?v=HAUjoi0Uq5E