The type of bookbinding can affect how durable a notebook is or if it can open up flat and whether the pages will remain intact or tear out easily. There are two main styles of bookbinding, including stitched and/or glued binding, which typically offers a longer lifespan than a spiral style. It also has smooth edges that make the notebook look more aesthetically appealing. Spiral styles make it easier to open a notebook and focus on one page at a time. The best spiral notebook is a twin-ring style (versus having one continuous coil) since it's less likely to get caught on other things in your bag or bend and separate like cheaper models.