Off-topic: if you want to see how the Einstein's puzzle can be solved by pure thought as well as an efficient Mathematica algorithm that needs less than 1 second and just 6 reviews of the hints to get certain about the solution, see the updated article Einstein's puzzle: a step-by-step solution which also contains links to the Mathematica code and its PDF preview.
Click the image to get to amazon.com.
Two weeks ago, a new interesting "demystified" book was published. Patrick Labelle wrote an introduction to the phenomenological aspects of supersymmetry. In this user-friendly colorful format, those 481 pages manage to explain superspace, superfields, the Wess-Zumino model, and the Minimal Supersymmetric Standard Model. Right now, it's the #4 bestseller in science for kids although TRF had to raise the rank from 120,000 to 3,500 now. ;-)
Amazon.com offers you the triplet - this book plus String theory demystified as well as Quantum field theory demystified - for a modest combined price of $46.33. That's pretty good.