Roy Harris is the teacher of Roy Dean, the source of his detailed approach to instruction, and chief technical influence in Brazilian Jiu Jitsu (BJJ).  He is a pioneering martial artist and fourth degree black belt in BJJ.As one of the first Americans to receive his black belt in Brazilian Jiu Jitsu, he quickly realized the need for a clear, systematic approach to learning and teaching the art.The result was an acclaimed catalogue of DVDs explaining techniques, principles, and training methods that lead to true effectiveness in grappling.Here are three of his classic DVD titles that helped bring BJJ to another generation of martial artists.Disc 1:  Takedowns from the KneesDisc 2:  Armlocks Volume 2Disc 3:  Brazilian Jiu Jitsu Over 40