Hal Higdon

Hal Higdon (born June 17, 1931) is an American writer and runner known for his training plans. He is the author of 34 books, including the best-selling ''Marathon: The Ultimate Training Guide''. He has worked as a freelance writer since 1959, and has written a variety of subjects including a children's book that was made into an animated feature. He has contributed to ''Runner's World'' magazine longer than any other writer. He ran eight times in the United States Olympic Trials and won four World Masters Championships. He is one of the founders of the Road Runners Club of America (RRCA). Provided by Wikipedia