This program is divided into three albums: weeks 1-8 on part 1, weeks 9-12 on part 2, and weeks 13-16 on part 3. The workouts consist of interval runs, tempo runs, long runs, warm-ups, cool-downs and stretching. Some workouts focus on your speed, some help you with endurance, others pace, but all have the cumulative effect of conditioning you to run 26.2 miles by the end of the program. Are you ready for a marathon? You will be.