An article from the Minnesota Weaver's series on the Science Museum's collection of ancient Peruvian textiles, focused on resist-dyeing. It introduces ikat, batik and plangi, then describes twelve plangi (tie-dyed) cotton cloths, probably from Chancay, in the museum's collection, including their plain-weave structure, materials, probable tie-dye process and designs. It also explains scaffold weaving, in which the weft becomes the warp so that cloths can be tie-dyed, with line drawings and two photographs.