Folding small pieces of fun paper works can be fun. To make bigger pieces, many tutorials does not show step by step folding guide, but only gives crease patterns. As a beginner with no background in reading this type of graphs but only a childhood hobby of folding paper planes, it is relatively hard for me to conceive a folding procedure that the crease patterns show. It is helpful to “do and observe”, so I chose the hard way in this matter: diagramming the crease pattern when I fold something. To start simple, here is a crease pattern for a flapping bird. I folded it, unfolded, and then observed (and drew) the crease patterns I got. The drawing process was a pleasure: given the capabilities of Illustrator, a piece of a cake.

Flapping Bird Crease Pattern