Britain's most famous mathematician takes us to the edge of knowledge to show us what we cannot know. Is the universe infinite? Do we know what happened before the Big Bang? Where is human consciousness located in the brain? And are there more undiscovered particles out there, beyond the Higgs boson? In the modern world, science is king: weekly headlines proclaim the latest scientific breakthroughs and numerous mathematical problems, once indecipherable, have now been solved. But are there limits to what we can discover about our physical universe? In this very personal journey to the edges of knowledge, Marcus du Sautoy investigates how leading experts in fields from quantum physics and cosmology, to sensory perception and neuroscience, have articulated the current lie of the land. In doing so, he travels to the very boundaries of understanding, questioning contradictory stories and consulting cutting edge data. Is it possible that we will one day know everything? Or are there fields of research that will always lie beyond the bounds of human comprehension? And if so, how do we cope with living in a universe where there are things that will forever transcend our understanding? In What We Cannot Know, Marcus du Sautoy leads us on a thought-provoking expedition to the furthest reaches of modern science. Prepare to be taken to the edge of knowledge to find out if there's anything we truly cannot know.

If you could send a letter back through time to your younger self, what would the letter say? In this moving collection, forty-one famous women write letters to the women they once were, filled with advice and insights they wish they had had when they were younger. Today show correspondent Ann Curry writes to herself as a rookie reporter in her first job, telling herself not to change so much to fit in, urging her young self, “It is time to be bold about who you really are.” Country music superstar Lee Ann Womack reflects on the stressed-out year spent recording her first album and encourages her younger self to enjoy the moment, not just the end result. And Maya Angelou, leaving home at seventeen with a newborn baby in her arms, assures herself she will succeed on her own, even if she does return home every now and then. These remarkable women are joined by Madeleine Albright, Queen Noor of Jordan, Cokie Roberts, Naomi Wolf, Eileen Fisher, Jane Kaczmarek, Olympia Dukakis, Macy Gray, and many others. Their letters contain rare glimpses into the personal lives of extraordinary women and powerful wisdom that readers will treasure. Wisdom from What I Know Now “Don’t let anybody raise you. You’ve been raised.” —Maya Angelou “Try more things. Cross more lines.” —Breena Clarke “Learn how to celebrate.” —Olympia Dukakis “You don’t have to be afraid of living alone.” —Eileen Fisher “Please yourself first . . . everything else follows.” —Macy Gray “Don’t be so quick to dismiss another human being.” —Barbara Boxer “Work should not be work.” —Mary Matalin “You can leave the work world—and come back on your own terms.” —Cokie Roberts “Laundry will wait very patiently.” —Nora Roberts “Your hair matters far, far less than you think” —Lisa Scottoline “Speak the truth but ride a fast horse.” —Kitty Kelley

One of America's leading historians offers the first major history of the Cold War. Packed with new information drawn from previously unavailable sources, the book offers major reassessments of Stalin, Mao, Khrushchev, Kennedy, Eisenhower, and Truman.

Praise for the Webby Award-winning newsletter: "I eagerly read 'Now I Know' every day. It's always fresh, always a surprise, and always interesting!" --Jimmy Wales, founder of Wikipedia and Wikia Did you know that there are actually 27 letters in the alphabet, or that the U.S. had a plan to invade Canada? And what actually happened to the flags left on the moon? Even if you think you have a handle on all things trivia, you're guaranteed a big surprise with Now I Know. From uncovering what happens to lost luggage to New York City's plan to crack down on crime by banning pinball, this book will challenge your knowledge of the fascinating stories behind the world's greatest facts. Covering 100 outrageous topics, Now I Know is the ultimate challenge for any know-it-all who thinks they have nothing left to learn.

An introduction to the ways in which scientists report their results after having collected data during their experiments.

This wonderfully whimsical book is a celebration of all the phases and stages it took to get you to who you are today... a bold, confident, incredible woman who is not afraid to stand up, speak out, and rock the boat.

A NEW YORK TIMES BESTSELLER “Brilliant and enthralling.”​ —The Wall Street Journal A paradigm-shifting book from an acclaimed Harvard Medical School scientist and one of Time’s most influential people. It’s a seemingly undeniable truth that aging is inevitable. But what if everything we’ve been taught to believe about aging is wrong? What if we could choose our lifespan? In this groundbreaking book, Dr. David Sinclair, leading world authority on genetics and longevity, reveals a bold new theory for why we age. As he writes: “Aging is a disease, and that disease is treatable.” This eye-opening and provocative work takes us to the frontlines of research that is pushing the boundaries on our perceived scientific limitations, revealing incredible breakthroughs—many from Dr. David Sinclair’s own lab at Harvard—that demonstrate how we can slow down, or even reverse, aging. The key is activating newly discovered vitality genes, the descendants of an ancient genetic survival circuit that is both the cause of aging and the key to reversing it. Recent experiments in genetic reprogramming suggest that in the near future we may not just be able to feel younger, but actually become younger. Through a page-turning narrative, Dr. Sinclair invites you into the process of scientific discovery and reveals the emerging technologies and simple lifestyle changes—such as intermittent fasting, cold exposure, exercising with the right intensity, and eating less meat—that have been shown to help us live younger and healthier for longer. At once a roadmap for taking charge of our own health destiny and a bold new vision for the future of humankind, Lifespan will forever change the way we think about why we age and what we can do about it.