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Origami/Types/Iso-Area Folding
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Iso-area folding is the folding of a model so that equal portions of each side of the paper shows on the exterior of the model. A popular method of iso-area folding was developed by Toshikazu Kawasaki and is explored in Origami for the Connoisseur, by Kunihiko Kasahara by Toshie Takahama.