Rock Breaks Scissors: A Practical Guide to Outguessing & Outwitting Almost Everybody - by William Poundstone. Delves into human psychology and why people are never able to simulate randomness. Why gamblers get addicted. How the stock market is predictable on some larger scale. I've enjoyed the author's earlier books.
Great Maps - by Jerry Brotton. An oversize coffee table book on the history of maps and cartography. I love this shit.