Joe Friel writes practical endurance-training manuals for cyclists, triathletes and older athletes, with an emphasis on structured planning rather than motivational memoir. The Triathlete's Training Bible explains periodisation, testing, intensity zones, recovery and race preparation across swimming, cycling and running, while The Cyclist's Training Bible applies the same framework to road and endurance cycling. Fast After 50 focuses on maintaining performance as athletes age, discussing high-intensity work, strength, recovery and changes in aerobic capacity. Friel's books are organised for repeated reference, with training concepts, schedules and methods that readers can adapt to different event distances and experience levels. They fit triathlon training, cycling, endurance coaching and masters athletics, especially for readers who want a systematic framework for building a season rather than a single fixed plan. Read more Less