This playful, entertaining, and mind-bending introduction to modern physics briskly explains 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. CarloRovelli, a renowned theoretical physicist, is a delightfully poetic and philosophical scientific guide. 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. Thebook celebrates the joy of discovery. Here, on the edge of what we know, in contact with the ocean of the unknown, shines the mystery and the beauty of the world, Rovelli writes. And it s breathtaking. '