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.

Scott Jurek is one of the world's best known and most beloved ultrarunners. Renowned for his remarkable endurance and speed, accomplished on a vegan diet, he's finished first in nearly all of ultrarunning's elite events over the course of his career. But after two decades of racing, training, speaking, and touring, Jurek felt an urgent need to discover something new about himself. He embarked on a wholly unique challenge, one that would force him to grow as a person and as an athlete: breaking the speed record for the Appalachian Trail.

Marathons have become too easy for some runners. What was once the pinnacle of achievement in a runner's life is now a stepping stone for extraordinary adventure in ultramarathoning. The number of ultrarunners - those running distances of 50k (31 miles), 50 miles, 100k (62 miles), or 100 miles - is growing astronomically each year. To date, there has been no practical guide to ultramarathoning. Now, Bryon Powell has written Relentless Forward Progress, the first how-to manual for aspiring ultrarunners.

This book has a single purpose - to inspire you to run! Through sharing a detailed account of my first three years of pursuing running from the middle to back of the pack, it will hopefully show you you are capable of much more than you may think. After my dad's major health scare, it was time for me to change everything. Little did I know how much I would learn after taking on some physical exercise. A radical diet change allowed me to lose a forth of my body weight and it gave me boundless energy to get outside and explore.

In 2017, world-class ultrarunner Hillary Allen was at the top of her sport - and it felt like she was running on top of the world as she competed in Norway's Tromsø Skyrace. Allen was nearly halfway through the 50-kilometer race when she fell 150 feet off an exposed ridge, fracturing her back and breaking multiple ribs, both feet, and both of her lower arms. Beginning with the dramatic story of her accident and rescue, Out and Back: A Runner's Story of Survival Against All Odds recounts Allen's fight to return to the life she loves.