If the history of quantum physics interests you at all, I highly recommend this book. It goes into a bit more depth than most of the popular books on the subject. Came across this while scanning the new book section of the local library.
http://www.amazon.com/Quantum-Story-History-40-Moments/dp/0199566844/ref=sr_1_1?s=books&ie=UTF8&qid=1312220413&sr=1-1
http://www.amazon.com/Quantum-Story-History-40-Moments/dp/0199566844/ref=sr_1_1?s=books&ie=UTF8&qid=1312220413&sr=1-1
Darian R.