Thoughts on O’Shea’s The Brain: A Very Short Introduction
Good discussion of lots of technical stuff, including regions of the brain, how nerves work, & artificial neural nets
http://www.amazon.com/Brain-Very-Short-Introduction/dp/B002KE9BPO/ref=sr_1_1?s=books&ie=UTF8&qid=1352690693&sr=1-1&keywords=The+Brain%3A+A+Very+Short+Introduction+%28Unabridged%29