Such a good, and practical book. Sometimes you get caught up in reading random internet articles about running, diving into Reddit threads, and after a while you don't even know what you should be doing to improve you endurance. It's nice to be able to gain some clarity from athletes with decades of experience; advice that isn't formulaic, and that doesn't skip over the reasoning behind it. There are many strong statements in this book, and I love that. Reading this book was especially helpful to me as a beginner to the sport of ultra trail running. My notebook is full charts, tables, and notes. Highly recommended.

Recommended by James Day