This is the book of one of the best coaches in the United States. It is based on studies of the results of the best runners in the world, data from scientific laboratories and many years of coaching experience of the author. It will help you better understand the physiology of running, properly build the training process, avoid injuries and eventually run faster. The book presents detailed training programs for different distances, adapted for runners of different levels. If you want to run your first marathon, you will find all the necessary recommendations here. The book is indispensable for both novice runners and professionals. Trainers will find in it the most modern methodological material, first published in Russian.