The Science of Star wars.

— I stumbled across the book by accident, but I found her treatment fascinating, and in the areas at which I am expert, accurate and informative. In particular, Chapter 3, "Droids" (pp. 78-125), contains an excellent review and analysis of the development, form, intelligence and emotions in robots. The emphasis is on C3PO (Threepio) and R2D2 (Artoo), but Cavelos does a truly excellent job of discussing the general issues and developments within AI and robotics in general. Fun reading, and informative even to experts.
Pointer to the book at Amazon.com