The author of "Seven Brief Lessons on Physics" takes us on a fascinating journey into the depths of the meaning of time. "We are time. We are this space, this clearing revealed thanks to the traces of memory in the connections between our neurons. We are memory. We are nostalgia. We long for a future that will not come." Time is a mystery that never ceases to astonish us. Philosophers, artists, and poets have long explored its meaning, while scientists have discovered that its structure differs from our simple intuitive ideas about it. From Boltzmann to quantum theory, from Einstein to loop quantum gravity, the way we understand time has undergone radical changes. Time flows at different rates in different places, the past differs from the future much less than we believe, and the very idea of the present is lost in our vast universe. Carlo Rovelli, with his remarkable charm and a deep sense of awe, combining science with philosophy and art, unravels this mystery. The Order of Time, an enlightening and unexpectedly comforting book, shows us that to understand ourselves, we must reflect on time – and to understand time, we must reflect on ourselves. "Carlo Rovelli manages to convey the mystery of very large and very small things extremely effectively."  Philip Pullman "Modern physics has found its poet. A captivating, thrilling, deeply beautiful book."  John Banville