Sijou van der Spek is the creator of the Gham Long Pai Kung-Fu system, a style in constant evolution for more than 35 years, with influences from Shaolin Kung Fu, Kempo, Choy Lee Fat, Yi Hsin Tao, Mok Gar Kung Fu and Kyokushinkai Karate. In order to develop and update the system, elements of Jeet Kune Do and Wing Chun, Pancrase and MMA, Kick and Thaiboxing, Muay Boran, Pangamot, Kali, and Filipino Knife Fighting have been added. In his desire to improve and innovate, Sijou van der Spek is the representative of numerous federations and still continues to learn from his Masters: GM S.B. Lee (Yi Hsin Tao Kung Fu), GM F. Stroeven (Pilipino Martial Arts & SCS System), Shihan L. Verhoeven (Police self-defense & Arrest techniques) and Master C. Mok (Mok Gar Kung Fu).In his first work, Sijou van der Spek shows us the forms 1, 3 and 4; basic and advanced Self-Defense techniques with explanations and variations; specific techniques against wrist grips, and advanced special techniques in different situations, such as strangulations, attacks with weapons, or sitting on a chair. A complete and innovative system, in continuous evolution and development.