What Does
He Know?

Doing the work is not the same as understanding what the work is doing.

David Lipscomb draws from more than three decades across coaching, martial arts, cycling, leadership, and performance data to show why real expertise lives in the connections between disciplines—not in credentials alone.

This book is about learning to see how an athlete produces power, responds to cadence and gearing, controls effort, and understands what is happening from the very first workout.