I did even do a search here - lots of great pics, but no explanations that I could find. Although checking some of the links (thanks for that Wikpedia link btw - that was interesting to see where it originated!) did mention strips - so is it that the fabric is cut into long strips, cut and re-sewn w/the little blocks offset each row? I'm just trying to wrap my brain around this... and it looks like the strips are cut in different widths...