Suibokuga is a style of painting originated from China. To paint, you use Chinese brush and black ink (very hard to wash off if it splashes to your clothes).
In my university days, just a short period I belonged to the Japanese Calligraphy Club, and in there some senpais(seniors)were adding beautiful drawings along with their calligraphy. Actually they were in colours, not precisely called suibokuga.
Suibokuga is painted only in black Chinese ink, and expressed its degree of thickness.
From the images from Wikipedia in Japanese, you can see how they look like.
(Click to enlarge)
In Toyama City, they bulit a Suibokuga Museum in 1999. Haven’t had a chance to visit, and in my first visit couldn’t see suibokuga because I’ve missed the train, in the next post will write what I’ve seen in there.
(June 21 at 20:30, corrected museum’s name)