About the Book The third book in the series, called "Challenge Workouts for Advanced Swimmers", contains 100 advanced level workouts that focus on speed and yardage, with specific workouts for freestyle, individual medley, sprint and distance swimming. The workouts in this book use pace work, descending and building sets, and goal swims, that total up to 6,000 yards/meters. Each workout is accompanied by a "Personal Challenge" to meet advanced training goals through controlled exertion, and improved pace and recovery time.