A set of nine sample-and-instruction sheets from Terrace Yarn Shop of Portland, Oregon, showing how different yarns weave up on twill threadings. Each sheet covers one yarn type (cotton boucle, wool and rayon floss, 7/2 and 9/2 linen, novelty rayon, 2-32 wool, singles weft linen, wool suiting) with warp set, reed, amounts, and finishing advice. Projects include table mats, towels, dirndl skirts, and women's and men's suiting. Pages 3, 7, 8 and 9 give threadings and treadlings, including Thousand Flowers, Whig Rose and an irregular twill, with photographs of woven swatches.