Life's Too Short to Go So F*cking Slow: Lessons from an Epic Friendship That Went the DistanceSusan Lacke4.2
80/20 Running: The Ultimate Guide to the Art of Running, Discover How Running Can Help You Improve Your Fitness, Lose Weight and Improve Your Overall HealthM.R. Zerf2.8
Running: A Complete Beginner's Guide to Running for All Distance Runners, from Milers to Ultramarathoners; Proven Tactics to Improve Running Performance and Prevent InjuryGeorge M. Silverstein2.8
Hal Koerner's Field Guide to Ultrarunning: Training for an Ultramarathon, from 50K to 100 Miles and BeyondHal Koerner4
The Oxygen Advantage: The Simple, Scientifically Proven Breathing Techniques for a Healthier, Slimmer, Faster, and Fitter YouPatrick McKeown4.4