Issue No. 27 (May 1956) of Master Weaver, a bi-monthly bulletin for handweavers published by Z-Handicrafts, Fulford, Quebec. It concludes the series on weaving standards by quoting and answering reader letters on guild standards, hand versus fly shuttle, and a central sales and certification agency. It also introduces analysis of yarns (appearance, physical, burning and microscope tests for identifying fibers), and a lesson on Summer & Winter covering its relation to Crackle, compound tie-ups, 3D weft effects, simplifying traditional drafts, and a damask-imitation linen place-mat project.