Running your first ultra : customizable training plans for your first 50k to 100-mile raceKrissy Moehl
Hal Koerner's field guide to ultrarunning : training for an ultramarathon, from 50K to 100 miles and beyondHal Koerner
The plant based runner : a personal guide to running, healthy eating, and discovering a new youJonathan Cairns
Training essentials for ultrarunning : how to train smarter, race faster, and maximize your ultramarathon performanceJason Koop