Sang H. Kim is the author of over 20 books and the creator of Junsado, the Way of Combat Expert, which is known for its versatility and adaptiveness. In late 1970s and early 1980s, while serving as a South Korean counter-intelligence agent, he created hand-to-hand, hand-to-weapon, and weapon-to-weapon combat training programs which later became the foundation of Junsado. He has spent a lifetime studying, practicing and refining his martial arts knowledge. Based on the popular series of videos and DVDs, he is currently working on a series of Junsado texts that comprise the complete Junsado system, including Junsado fundamentals, groudnfighting, wrist locks, joint immobilizations, and weapons. He periodically blogs about Junsado at www.junsado.com.