The Warrior Diet: Switch on Your Biological Powerhouse For High Energy, Explosive Strength, and a Leaner, Harder Body

Hal Koerner's Field Guide to Ultrarunning: Training for an Ultramarathon, from 50K to 100 Miles and Beyond

Relentless Forward Progress: A Guide to Running Ultramarathons

Finding Ultra, Revised and Updated Edition: Rejecting Middle Age, Becoming One of the World's Fittest Men, and Discovering Myself

50/50: Secrets I Learned Running 50 Marathons in 50 Days -- and How You Too Can Achieve Super Endurance!

North: Finding My Way While Running the Appalachian Trail

Run Faster from the 5K to the Marathon: How to Be Your Own Best Coach

Running Free

Endure: Mind, Body, and the Curiously Elastic Limits of Human Performance

Born to Run: A Hidden Tribe, Superathletes, and the Greatest Race the World Has Never Seen

The Rise of the Ultra Runners: A Journey to the Edge of Human Endurance

Born to Run 2: The Ultimate Training Guide

Summary of Danny Dreyer & Katherine Dreyer's ChiRunning

Let Your Mind Run: A Memoir of Thinking My Way to Victory

Body by Science: A Research Based Program for Strength Training, Body building, and Complete Fitness in 12 Minutes a Week

Grain Brain: The Surprising Truth about Wheat, Carbs, and Sugar--Your Brain's Silent Killers

Feet in the Clouds: The Classic Tale of Fell-Running and Obsession

The Big Book of Baseball Stories: Timeless and Compelling Tales of Our National Game

Twin Ambitions - My Autobiography: The story of Team GB's double Olympic champion

Natural Born Heroes: How a Daring Band of Misfits Mastered the Lost Secrets of Strength and Endurance