When Bernd Heinrich decided to write a memoir of his ultramarathon running experience, he realized that the preparation for the race was as important, if not more so, than the race itself. In Why We Run, Heinrich considers the flight endurance of birds, the antelope's running prowess and limitations, and the ultra-endurance of camels to understand how human physiology can or cannot replicate these adaptations. Heinrich offers an original and provocative work combining the rigors of science with the passion of running.

As the snow melts and the spring approaches, the animal kingdom awakens. In Summer World, Bernd Heinrich, the best-selling author of Winter World, brings us an up-close and personal view of that awakening and rebirth.

When Des woke up on April 16, 2018, the morning of the Boston Marathon, it was 39 degrees and raining, with high, gusty winds. The weather didn’t bother her. In fact, she thought it might be a blessing. She was far from peak form—recovering from illness and questioning her running future—and didn’t expect much of herself that day. But as she ticked off mile after mile in the brutal conditions, passing familiar landmarks on the course she knew and loved, something shifted. Opportunity unexpectedly presented itself. Des tapped into her inner strength and found a reason to race.

Welcome to the Barkley Marathons, a fever dream of an ultra event, inspired by a prison break, heralded by a conch blast, paid for in cigarettes and socks, and completed only by a select few. A race in which competitors haul themselves up mountains, through extreme weather conditions, beyond pain and exhaustion, mile after mile. Completed 60 miles? That’s just the fun run. In the Spell of the Barkley is a story of sporting obsession, exploring what drives individuals to challenge themselves at the limits of what is possible – and what it takes to succeed.

From one of the finest scientists and writers of our time comes an engaging record of a life spent in close observation of the natural world, one that has yielded marvelous, mind-altering insight and discoveries. In essays that span several decades, Bernd Heinrich finds himself at his beloved camp in Maine, plays host to annoying visitors from Europe (the cluster fly) and more helpful guests from Asia (ladybugs), and unravels the far-reaching ecological consequences of elephants in Botswana bruising mopane trees.

From the best-selling author and renowned coach duo from Born to Run, a practical guide to running for everyone from amateurs to seasoned runners, about how to eat, race, and train like the world's best. Whether you're ramping up for a race or recuperating from an injury, Born to Run 2 is a holistic program for runners of every stripe that centers on seven key themes: food, fitness, form, footwear, focus, fun, and family.

Isolated by Mexico's deadly Copper Canyons, the blissful Tarahumara Indians have honed the ability to run hundreds of miles without rest or injury. In a riveting narrative, award-winning journalist and often-injured runner Christopher McDougall sets out to discover their secrets. In the process, he takes his readers from science labs at Harvard to the sun-baked valleys and freezing peaks across North America, where ever-growing numbers of ultra-runners are pushing their bodies to the limit.

Kara Goucher grew up with Olympic dreams. She excelled at running from a young age and was offered a Nike sponsorship deal when she graduated from college. Then in 2004, she was invited to join a secretive, lavishly funded new team, dubbed the Nike Oregon Project. Coached by distance running legend Alberto Salazar, it seemed like the opportunity of a lifetime. Kara was soon winning a World Championship medal, going to the Olympics, and standing on the podium at the New York and Boston marathons, just like her coach. But behind the scenes, Salazar was hiding dark secrets.

The road from a high school track to an Olympic starting line is long and sometimes shadowy. Obstacles like chronic injuries, under-fueled nutrition, and coercive coaching can threaten to derail careers before they’ve even begun. Frustrated by seeing young talent burn out before reaching their potential, professional distance runner Molly Huddle and college coach Sara Slattery have teamed up with trailblazing running legends and sports medicine professionals to create an essential guide to reach your running potential.

Lauren Fleshman has grown up in the world of running. One of the most decorated collegiate athletes of all time and a national champion as a pro, she was a major face of women’s running for Nike before leaving to shake up the industry with feminist running brand Oiselle and now coaches elite young female runners. Every step of the way, she has seen the way that our sports systems—originally designed by men, for men and boys—fail young women and girls as much as empower them. Written with heart and verve, Good for a Girl is a joyful love letter to the running life.

From beloved performance expert, executive coach, and coauthor of Peak Performance Steve Magness comes a radical rethinking of how we perceive toughness and what it means to achieve our high ambitions in the face of hard things.

In 80/20 Running, respected running and fitness expert Matt Fitzgerald introduced his revolutionary training program and explained why doing 80 percent of runs at a lower intensity and just 20 percent at a higher intensity is the best way for runners at all levels - as well as cyclists, triathletes, and even weight-loss seekers - to improve their performance. Now, in this eye-opening follow-up, Fitzgerald teams with Olympic coach Ben Rosario to expand and update the 80/20 program to include ultramarathon training and such popular developments as the use of power meters.

Achievement often comes at a cost. Angst, restlessness, frayed relationships, exhaustion, and even substance abuse can be the unwanted side effects of an obsession with outward performance. While the high of occasional wins can keep you going for a while, playing into the always-on, never enough hustle culture ultimately takes a serious toll.

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?"

The Earth teems with sights and textures, sounds and vibrations, smells and tastes, electric and magnetic fields. But every kind of animal, including humans, is enclosed within its own unique sensory bubble, perceiving but a tiny sliver of our immense world. In An Immense World, Ed Yong coaxes us beyond the confines of our own senses, allowing us to perceive the skeins of scent, waves of electromagnetism, and pulses of pressure that surround us.