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They say that exercise is half the work. Since I said I would make an encyclopedia, I thought I should make one that organizes the work, and I made it so that anyone can easily understand and make it their own, so that running is fun, and you can get faster just by following it, so enjoy. I have attached the athletes' running postures here and there, so take a good look and follow along. I made this in the hope that everyone in Korea will run and run marathons together with Jeong Seok-geun Health Life.