Do the Du, for aspiring multi-sport racers who aren't into swimming. The book covers the history of duathlon, how it works, and how to keep it fun. Includes training principles and programs for races of varying lengths, from starting out to racing regularly. Focusing on 13-week training programs, it takes you through the basic techniques of running, cycling and fast walking, equipment, and race planning race day. The author is a physician, professor of preventive medicine, and a seasoned multi-sport racer.