David Clark is a formerly obese alcoholic and fast food junkie who found a new life in running. Now, 13 years after his transformation, he shares his inspiring story of taking running to the extreme edge of his physical and spiritual breaking points. Having run more than a hundred races, including the Leadville 100-Mile Trail Run and the Hardrock 100, David has achieved unimaginable success in the ultramarathon world, considering his humble start.

Ultramarathon Man helped introduce the world to ultramarathoning. Now, after three decades of running ultramarathons across the globe, Dean Karnazes is still going strong. This updated and revised edition includes an afterword full of the lessons he’s picked up along the way. He gives personal details on the essential pillars of health—fitness, diet, and sleep. What does he eat, what supplements does he take, and what kind of mattress does he sleep on? Aging well takes work, and the man who hasn’t stopped is sharing the tips and learnings that have kept him going.

As a journalist whose career spans three decades, CNN correspondent Tom Foreman has reported from the heart of war zones, riots, and natural disasters. He has interviewed serial killers and been in the line of fire. But the most terrifying moment of his life didn't occur on the job - it occurred at home, when his 18-year-old daughter asked, "How would you feel about running a marathon with me?"

Growing up in the Canadian Rockies, the mountains have always been home for Jenny Tough. Travelling the world, she's always discovered commonalities with mountains—and mountain people. Her major project is to run solo and unsupported across a mountain range on every continent where indigenous mountain people live isolated from the outside, urban world. Running solo and unsupported comes with obvious logistical as well as physical challenges, but running is also a common language.

After a decade-long addiction to crack cocaine and alcohol, Charlie Engle hit bottom with a near-fatal six-day binge that ended in a hail of bullets. As Engle got sober, he turned to running, which became his lifeline, his pastime, and his salvation. He began with marathons, and when marathons weren't far enough he began to take on ultramarathons, races that went for 35, 50, and sometimes hundreds of miles, traveling to some of the most unforgiving places on earth to race.