Pete Pfitzinger is a former elite marathoner and exercise physiologist. He has a wealth of experience in coaching and has worked with runners of all levels. Pfitzinger is also the co-author of several other running books, including "Road Racing for Serious Runners" and "Advanced Marathoning."
Scott Douglas is a running journalist and author who has contributed to numerous running publications. He has written several books on the sport, including "Running Is My Therapy" and "The Little Red Book of Running." Douglas has a deep understanding of the running community and provides valuable insights into the mental and physical aspects of the sport.

