Sublime
An inspiration engine for ideas
Hal Koerner's Field Guide to Ultrarunning: Training for an Ultramarathon, from 50K to 100 Miles and Beyond
amazon.com

Training for the Uphill Athlete: A Manual for Mountain Runners and Ski Mountaineers
amazon.com




Born to Run: The hidden tribe, the ultra-runners, and the greatest race the world has never seen
amazon.com
