105th day of 2016.
If there are a stack of loose papers, the easiest way to bind them is to staple them, as what is done in office. The more 'crafty' way of doing it would be thread sewn. This particular side binding is very versatile in terms of the binding methods and materials.
Most notably, I often seen this binding in ancient Asian books. It creates nice texture but unable to open flat, not to mention having the gutter space.