Some links below may be affiliate links. Runworks may get paid if you buy something or take an action after clicking one of these.

As an Amazon Associate Runworks earns from qualifying purchases.

Lore of Running Physiology, Training, Racing, Injuries
 Lore of Running

Daniels' Running Formula: Second Edition Respected Scientific Training Guide
 Daniels' Running Formula: Second Edition

GoPro Hero3 Best Camera for Action Sports Videos
 GoPro Hero3