Copic Markers are a special kind of Markers being used for illustrations in advertising agencies and also by cartoonists for Manga Art. If you learn how to use Copic Markers propperly your cartoons will look very professional.
I only teach this Workshop to advanced students from 12 years up. You will see a slideshow about a Copic Marker Workshop in 2007, taught by one of my former students: Amja Wagner. She has been assisting me in the past couple of years before I left Germany and took over some of my classes after I left.
By now she has written her own Manga Stories.