"One of Choice Reviews' Outstanding Academic Titles of 2018"
"If you already know a bit about the topic, and are not afraid of a few equations, <i>On Gravity</i> will take you deeper (if you are very brave, the appendix will even explain the meaning of curved space-time)."<b>---John Gribbin, <i>Wall Street Journal</i></b>
"<i>On Gravity</i> . . . begins its tour of Einsteinâs general theory of relativity with the discovery of gravitational waves, and lands the reader deep in the mysteries of dark matter and energy."<b>---Liz Else and Simon Ings, <i>New Scientist</i></b>
"[<i>On Gravity</i>] is exactly what is needed to communicate to the general public the beauty and depth of Einsteinâs theory of gravity. . . . For anybody with a desire to understand what is happening at the forefront of our exploration of the universe, this is a perfect start."
Mathemafrica
"[<i>On Gravity</i>] is concise, timely . . . [and] by the end of the book, you will be breathless, but up to date with the latest advances in the science. Itâs a tour intended to take the reader a step beyond a popular treatment and give a deeper glimpse of the beautiful and uncompromising structure underlying the theory."<b>---Tara Shears, <i>Times Higher Education</i></b>
"With <i>On Gravity, </i>Zee decides to shoot for a middle ground in terms of level of sophistication. . . . [F]or those who want to move beyond popular books about gravity, but arenât ready for a massive textbook with advanced mathematics, <i>On Gravity</i> does provide more insights about how gravity works without getting too complex. Gravity may be absurdly weak, but that doesnât mean itâs easy to fully understand, or overcome."<b>---Jeff Foust, <i>Space Review</i></b>
"<i>On Gravity</i> offers a new and refreshing base from which to delve deeper than most popular-science books into the most pressing problems in fundamental physics."<b>---Benjamin Skuse, <i>Physics World</i></b>