Have you ever thought about the uniqueness and simplicity of One, or what it means to be Two? Is Four really so square and why are there Seven days of the week, Seven deadly sins, or even Seven wonders of the world? In One to Nine, Andrew Hodges brings numbers to life. Inspired by the popularity of Sudoku – and millennia of human attempts to figure things out – this pithy, kaleidoscopic book takes a fresh, witty and hands-on approach to such various topics as musical harmony, code breaking, and probabilities in poker and lotteries. It probes the surprising symmetries of time, space, matter, and forces. It even goes to the heart of what computers can do. Andrew Hodges weaves together the inner life of numbers – the patterns of primes and powers that we try to grasp, and that have us in their grip. Accessible to anyone with a general curiosity and interest in puzzles, One to Nine might even have you completing a fiendish Sudoku in record time.

He had a dream. He dreamt that he lived in a land where the people were free. They were free to live their lives and raise their families, in the light of their own god, without the interference or dictation from the king, the court, the state, or the church, the American dream.

The incredible bestselling book from the author of No Barriers and The Adversity Advantage Erik Weihenmayer was born with retinoscheses, a degenerative eye disorder that would leave him blind by the age of thirteen. But Erik was determined to rise above this devastating disability and lead a fulfilling and exciting life. In this poignant and inspiring memoir, he shares his struggle to push past the limits imposed on him by his visual impairment-and by a seeing world. He speaks movingly of the role his family played in his battle to break through the barriers of blindness: the mother who prayed for the miracle that would restore her son's sight and the father who encouraged him to strive for that distant mountaintop. And he tells the story of his dream to climb the world's Seven Summits, and how he is turning that dream into astonishing reality (something fewer than a hundred mountaineers have done). From the snow-capped summit of McKinley to the towering peaks of Aconcagua and Kilimanjaro to the ultimate challenge, Mount Everest, this is a story about daring to dream in the face of impossible odds. It is about finding the courage to reach for that ultimate summit, and transforming your life into something truly miraculous. "An inspiration to other blind people and plenty of us folks who can see just fine."—Jon Krakauer, New York Times bestselling author of Into Thin Air