Sadako Sasaki was a Japanese girl irradiated in Hiroshima in 1945 when she was 2 years old. She died ten years later and is to this day a symbol of innocent victims of war. Sadoka's ambition was to fold 1,000 origami cranes to get a wish from the gods. Viers has placed inside the Warp And Weft album some paper to be folded. For every crane that is returned, she pledges to give a dollar to a peace group.
The Warp and Weft album title is a weaving term. Veirs explained to American Songwriter magazine: "It refers to the two directions of yarn on a loom. I weave in old folk songs, references to other artists and lots of different and lyrical elements (dark and light) so for me the title works on multiple levels."