Massive Black, the gracious hosts of ConceptArt.org, have an art book being released in January through Ballistic Publishing.
"Massive Black, Volume 1 brings together more than 700 pieces of artwork by the Massive Black team from studios in San Francisco, Shanghai, and Bangkok. It is a spectacular collection of art produced for high-profile game properties, internally developed game worlds, and the personal art from the world’s most exciting art studio."
More info, inlcuding early-bird specails, here.