Backstage tour of the innovative video game...

Dark Horse Comics announces that they will be releasing a brand-new art book for Valve's Portal 2.

With the book, Valve and Dark Horse pull back the curtain to give fans a backstage tour of one of the most innovative video games of the decade. The Art of Portal 2 walks you through the visual evolution of the award-winning game, from concept to completion, with never-before-seen concept art and insights from the writers and artists behind the Portal series.

The Art of Portal 2 offers incredible visuals of the Aperture Science facility and the creation of Chell and the rest of the cast, and features 184 pages of mostly never-before-seen art and a look into the design process of the legendary game studio.

The Art of Portal 2 goes on sale October 31, 2012.

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