There is one called "Walt Disney Imagineer: A Behind-the-Dreams Look at Making the Magic Real." I like it, it is very descriptive.
There is also a series that they have recently come out with titled "The Imagineering Field Guide to the _______" So far, Magic Kingdom, Epcot, and Animal Kingdom.
Disneyland is coming out on November 4. Hollywood Studios is coming out next April next year.