343i have announced Halo 4: The Essential Visual Guide.
Created with DK Publishing, this guide is set to be your companion to the world of Halo 4. It will Feature indepth detail, with breathtaking artwork from the Halo universe. With a collection of facts and detailed sections about the weapons, vehicles, characters, armor, equipment, ships and locations it's set to be a real treat to add to your Halo collection. 

 Halo 4: The Essential Visual Guide is due for release on 24/9/2013 for $16.99 (around £12.00).