Dean Karnazes is a two-time New York Times bestselling author and an icon of the running world. Widely recognized as one of the fittest people on the planet, he has been named one of the 'Top 100 Most Influential People in the World' by Time magazine.
Karnazes reveals the mind-boggling adventures of his nonstop treks through the hell of Death Valley, the incomprehensible frigidity of the South Pole, and the breathtaking beauty of the mountains and canyons of the Sierra Nevada.