Mark Brudnak is a published author, who has written extensively in the area of martial arts, training in jujitsu and self-defense. He holds a 3rd degree black belt in TaeKwon-Do and is a regional champion. He started the Chosun TaeKwon-Do school in Grafton WI which sits near the pristine shores of Lake Michigan. Mornings began with calisthenics, as the sun rises over the lake (weather permitting). Mark has since moved on and is currently living in Washington State so is not currently accepting students.
Here is an article Mark wrote on why we practice martial arts.