"There are borders, where we are learning and where our desire to know burns. They are in the tiniest depths of the fabric of space, in the origins of the cosmos, in the nature of time, in the fate of black holes, and in the workings of our own thinking, "says the author of this book. become an unexpected best seller in Italy and is being translated into more than twenty languages. What explains his success is very simple and at the same time very difficult to achieve: with passion, fluency and a commendable willingness to explain in a diaphanous way complex subjects, Carlo Rovelli, scientist of humanistic strain, proposes a brief but very complete tour by the milestones of physics of the last hundred years. And so we go over Einstein's theory of relativity, quantum mechanics, the architecture of the universe we inhabit, elementary particles, quantum gravity, black holes ... But also the nature of time and our place within this infinite framework . There are seven masterful lessons that allow the reader not specialized to enter easily arduous and arid a priori. Combining enthusiasm, clarity and rigor, Rovelli offers us a wonderful (and beautiful) panorama of the findings of physics, through which the human being has unraveled the mysteries of the universe. "A scientist with unusual talent: the ability to capture in a book the beauty of everything that exists" (Daniela Mattalia, Panorama). "The origin of the cosmos and black holes, the articulated relationship between space and particles and the way our thinking works" (Alessandra Longo, La Repubblica) has an exemplary clarity. "An example (unusual) of an enthusiastic disclosure" (Il Messaggero). "I think it's the first time in the history of the best selling book lists in Italy that a physics essay occupies the top ten of the top ten and becomes the absolute number one ... An intense and beautiful book, which is the selfie that the planet Earth has made to itself in this moment of its history "(Antonio D'Orrico, Corriere della Sera). «Absolutely essential» (Ambra Bambini, L'Altrapagina). "A beautiful and absorbing book" (Michael Brooks, New Statesman). "This brief book shows that science, with the curiosity that implies, its absolute commitment to what surrounds us, its predisposition to get rid of preset points of view, is also a type of poetry" (Neville Hawcock, Financial Times).