Taekwondo practitioners wear a uniform, known as a dobok, perfect attire for this Korean combat sport. Grand Master John Chung is back on Volume 17 of this series with the form Yoo-Sin, which is one of the 3rd degree black belt forms used in IFT style of Taekwondo. This form consists of 68 movements. The style of Taekwondo places emphasis on speed and agility. The next form demonstrated by Grand Master Chung is Yoo-Sin, a form named after General Kim Sin which consists of 68 movements. Taekwondo is characterized by its emphasis of head heigh kicks, jumping and spinning kicks, and fast kicking techniques. The other forms taught by Grand Master Chung are Ko-Dang, Sam-Il and Tong-Il.