Winchester, bestselling author of The Professor and the Madman, returns to the natural world with his epic new book, a "biography" of the Atlantic Ocean, from its origins 370 million years ago through the population of its shores by humanity and their interactions with it. He sees the Atlantic as the vital ingredient in the blooming of Western civilization. He scrutinizes the early explorations from the Vikings and Norsemen through Columbus, detailing the perils of the open sea. With his excellent research and engrossing anecdotes about the ocean as "a living thing," Winchester spotlights its inspiration on poets, painters, and writers in its majestic beauty. Although he does not neglect the chief tragedies of the Atlantic, like the slave trade and the maritime battles, Winchester occasionally flits beelike from scene to scene, and the facts become lost in a blur. Maybe this is the price for such a monumental undertaking. Nevertheless, Winchester's sea saga is necessary reading for those who want to understand the planet better, even as, he notes, our waters are rapidly changing from pollution, overfishing, and climate change.