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

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

Koerner Hal

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

Run for Your Life: How to Run, Walk, and Move Without Pain or Injury and Achieve a Sense of Well-Being and Joy

Mark Cucuzzella

amazon.com
Cover of Run for Your Life: How to Run, Walk, and Move Without Pain or Injury and Achieve a Sense of Well-Being and Joy

Christopher McDougall Natural Born Heroes

Advanced Marathoning

Scott Douglas

amazon.com
Cover of Advanced Marathoning