A short article from Master Weaver on diamond twill, which it calls the simplest pattern weave and one that deserves more attention. It explains weaving diamond twill with or without a binder (tabby or the opposite twill shed), and gives rules for sett, for the number of shots on each treadle, and for placing the binder. Four drafts show woven-as-drawn-in and fancy treadlings, diamond twill alternating with plain twill, and tiny diamonds inserted into a biased twill. It ends with a practical project for woolen yardage for sports coats, giving warp, sett and treadling.