The technique is unique, but easy to learn in 10 lessons. Please come to see me or use the reference below.
Reference - for detailed description of Sumi-e techniques please consult publication "Oriental Calligraphy and Painting - The 3 B's, Body, Breath and Brush -", by Tomoko Kodama, first published in Ottawa in 1989, ISBN 0-9693974-0-2
Note: to see 20 seconds Quick-Time movie, demonstration of the brush technique, please click here.