Carlo Rovelli brings a playful, entertaining, and mind-bending introduction to modern physics, offering surprising--and surprisingly easy to grasp--explanations of Einstein's general relativity, quantum mechanics, elementary particles, gravity, black holes, the complex architecture of the universe, and the role humans play in this weird and wonderful world. He takes us to the frontiers of our knowledge: to the most minute reaches of the fabric of space, back to the origins of the cosmos, and into the workings of our minds.