http://www.amazon.com/Martial-Arts-Ancient...2636&sr=8-1
Kostas's method of Pammachon is something special and he is a special teacher. Well worth checking out if you are interested in the martial arts. Kostas has gotten to the 'root' of the fighting arts and has a tremendous understanding of the principles underlying martial arts.
His students are also special people and great hosts, (hello 'Zeus', I look forward to seeing you again the end of the year my friend!)