"Fedor: The Fighting System of the World's Undisputed King of MMA" is a trade paperback book published by Victory Belt Publishing in 2008. Written by Erich Krauss, Fedor Emelianenko, and Glen Cordoza, the book delves into the martial arts and self-defense techniques used by the world's top MMA fighter, Fedor Emelianenko. With illustrations and insights into the fighting system of the MMA king, this book is a must-read for sports and martial arts enthusiasts looking to learn from one of the best in the business."