I was expecting a bunch of stuff I knew, and a few tidbits I didn't, out of this book. In fact, a lot of it was new material, not least because Livio spends a third to a half of the book debunking a lot of the conventional wisdom about the Golden Ratio appearing basically everywhere in ancient and modern art and architecture. A good read, not too heavy on the math in the main text, but with plenty of crunchy proofs in the appendices.
#71-72: Top Ten and Top Ten: The Forty-Niners by Alan Moore et al
A couple graphic novels about a police precinct in a city full of supers. Definitely a fun read, with a few shared thematic elements from Watchmen but a completely different tone. Looking forward to picking up some more volumes of this one.
#73: Heroes Die by Matthew Woodring Stover
A recommendation from shardavarius. The world-building seemed a bit clumsy to start, but once the plot got going it sucked me in hard. It makes for very compelling reading to realize that you actually have no idea how the hell the protagonist is going to do what he needs to do, and stamping "HEROES DIE" on the cover of the book certainly doesn't lessen the suspense. And I actually found myself regularly sympathizing with the "villain" as well...
...I thought there was another book I finished recently, but maybe not.