Thanks, S. That tutorial is very helpful indeed. However, I don't think it speaks to my problem. I want to select all lines (or virtually all the lines) that the tracer generates and turn them into calligraphy strokes, for example. But trace simply produces so many -- even when I bring in a photoshop outline bitmap simplified to pure B&W -- that I can't use it. I'm wondering if there's a way to make trace generate only one stroke for every black line in the bitmap outline. Thus if I select all strokes>change to calligraphy stroke #1, the result will look like the line drawings in a colouring book, with a minimum of deletes required.