I use sumi ink. It's the kind of ink that comes in a dry block and you grind it on a stone. It has a softer, more mellow quality than the pure black ink that you might get in a bottle for calligraphy. I use oriental style brushes and some very fine western style brushes. And as you can imagine, it's a NO ERASE proposal. For the Cinder picture I penciled it in lightly first to get the porportion right, and even then, the head is too large. But ink does not allow hesitation. It's just GO! And don't look back. Remind you of anything else?