Here is an interesting way to fold a piece of paper quite unlike your normal fold. Like other ways to fold a piece of paper, this one lies flat has many layers and is smaller than the original piece of paper. It is different than a regular fold because of the way the paper twists as it folds. The movement is simple, but very interesting. This type of fold can create some beautiful patterns in origami. Here is a simple version that I read about in Thomas Hull's book.