Physicist and author Tony Zee has produced maybe his best offering yet, which is saying something. As a science writer myself, I'm not sure exactly how Zee can write such engaging prose that will be of utility to anyone from a non-academic fan of physics, or an undergraduate physics major, all the way to practitioners at the highest level. I'm just a pipes-and-wires physicist, but take it from an accomplished theorist friend who works in black hole thermodynamics: "Fantastic! Really insightful, centered on dim analysis and orders of magnitude. This is the kind of stuff that leads to deeper understanding."