Here's another great video with Robert Lang discussing 11 levels of complexity of Origami. https://www.youtube.com/watch?v=MDwPXRy9IFc https://www.youtube.com/w

Here's another great video with Robert Lang discussing 11 levels of complexity of Origami. https://www.youtube.com/watch?v=MDwPXRy9IFc https://www.youtube.com/watch?v=MDwPXRy9IFc Ok, spoke too soon. Robert Lang does have lots of books on Origami https://langorigami.com/publications/my-books/ https://langorigami.com/publications/my-books/