This is one of the best free wrestling books you will ever find. In fact its extremely good even if he charged for it and well worth paying money for. Obviously we can take no responsibility for 3rd party websites that may host it, but if you find a reputable one that offers no download risks, Warren’s book is a masterpiece on the important of head position and breaking grips. In fact, I think he quotes that 70% of wrestling is dominant head position.