There were two aspects to this book, one of which I found enlightening and enjoyable and one which I found confusing. The first was Lindley’s marvelous retelling of the history of physics, from the Greek’s abstract reasoning to Einstein’s struggles. This was by far my favorite part. He is not only engaging but amazingly illuminating. Aspects of physics that had eluded me, such as time dilation and length contraction, were made brilliantly clear, as was the whole progression of the mathemati-zation of physics. Lindley is able to trace how physicists transition from finding mathematical innovations neat tricks to facilitate their calculation without giving them any weight as evidence to being completely guided by mathematical simplicity and “beauty”. This is where the second, more confusing part, started. Arriving at the current vogue in physics research, the theory of everything (ToE), Lindley is unable to hold the distance that made the previous tempestuous revolutions in physics so clear, and is left with no choice but to recount all the different tacks taken now in pursuit of ToE. This results in a much more chaotic reading experience for the reader unfamiliar with, or not enthralled by, the back and forth of current research. Theories that would not be worth mentioning in a few decades, let alone in a century, get an inevitable share of the attention as Lindley tries to share with the reader all the current theories that might yet yield something up. While I can certainly recommend the first half of the book, I could not do the same for the second half.