New York Times best-selling author and ultramarathoning legend Dean Karnazes has pushed his body and mind to inconceivable limits, from running in the shoe-melting heat of Death Valley to the lung-freezing cold of the South Pole. He’s raced and competed across the globe and once ran 50 marathons, in 50 states, in 50 consecutive days.

Aside from her rock star looks, Catra Corbett is a standout in the running world on her accomplishments alone. And, unbelievably, she's also a former meth addict. After two years of addiction, Catra is busted while selling, and a night in jail is enough to set her straight. She gives up drugs and moves back home with her mother, abandoning her friends, her boyfriend, and the lifestyle that she came to depend on. Her only clean friend pushes her to train for a 10K with him, and surprisingly, she likes it and decides to run her first marathon after that.

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.

Ultramarathons don't leave much room for mistakes. Don't learn the hard way: Get a jump on training for an ultramarathon with Hal Koerner's Field Guide to Ultrarunning, a comprehensive handbook to running 30 to 100 miles and beyond, authored by one of the most experienced and recognized athletes in the sport.   

Ultra running defies conventional logic. Yet this most brutal and challenging sport is now one of the fastest growing in the world. But is it an antidote to modern life or a symptom of a modern illness? Adharanand Finn travelled to the heart of the sport to find out - and to see if could become an ultra runner himself. His journey took him from the deserts of Oman to the snow-capped peaks of the Rockies, and from a 24-hour track race in Tooting to his ultimate goal, the 105-mile Ultra-Trail du Mont-Blanc. 

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.

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.

The most accomplished mountain runner of all time contemplates his record-breaking climbs of Mount Everest in this profound memoir - an intellectual and spiritual journey that moves from the earth’s highest peak to the soul’s deepest reaches.

The ultimate endurance athlete, Marshall Ulrich has run more than 100 foot races averaging over 100 miles each, completed 12 expedition-length adventure races, and ascended the seven summits - including Mount Everest. Yet, his run from California to New York - the equivalent of running two marathons and a 10k every day for nearly two months straight - proved to be his most challenging effort yet. In Running on Empty, he shares the gritty backstory of his run and the excruciating punishments he endured on the road.

Finding Ultra is Rich Roll's incredible but true account of achieving one of the most awe-inspiring midlife physical transformations ever. One evening in 2006, before turning 40, Rich experienced a chilling glimpse of his future. Nearly 50 pounds overweight at the time and unable to climb the stairs without stopping, he plunged into a new way of eating that made processed foods off-limits and prioritized plant nutrition and daily training. Rich morphed - in mere months - from out-of-shape midlifer to endurance machine. Revised and updated edition with a new and original foreword and a bonus chapter.

 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. 

Training for the Uphill Athlete translates theory into methodology to allow you to write your own training plans and coach yourself to endurance goals. Steve House, one of the best mountaineers, and his coach Scott Johnston, an Olympic-level cross country ski coach, along with Kilian Jornet, hands down best endurance athlete at this time, present training principles for the multisport mountain athlete who regularly participates in a mix of distance running, ski mountaineering, and other endurance sports that require optimum fitness and customized strength.  

This revolutionary training method has been embraced by elite runners - with extraordinary results - and now you can do it, too. Respected running and fitness expert Matt Fitzgerald explains how the 80/20 running program - in which you do 80 percent of runs at a lower intensity and just 20 percent at a higher intensity - is the best change runners of all abilities can make to improve their performance.

Matt Fitzgerald has already made a name for himself in the endurance-sport community with books like 80/20 Running, How Bad Do You Want It?, and Iron War. He is an accomplished amateur runner, but if he follows the training, nutrition, and lifestyle of an elite runner, just how fast could he go? He is approaching his mid-40s, so the time to do this is now. He at last has the financial means to do nothing but train.

Ultrarunner Scott Jurek opens up about his life and career - as an elite athlete and a vegan - and inspires runners at every level. From his Midwestern childhood hunting, fishing, and cooking for his meat-and-potatoes family, to his early beginnings in running (he hated it), to his slow transition to ultrarunning and veganism, to his world-spanning, record-breaking races, Scott’s story shows the power of an iron will and blows apart all the stereotypes of what athletes should eat to fuel optimal performance.