Editing Notebook (section)

=== Variations ===
Today, it is common for pages in such notebooks to include a thin line of [[Perforation|perforations]] that make it easier to tear out the page. 

Spiral-bound pages can be torn out, but frequently leave thin scraggly strips from the small amount of paper that is within the spiral, as well as an uneven rip along the top of the torn-out page. 

Hard-bound notebooks include a sewn spine, and the pages are not easily removed. Some styles of sewn bindings allow pages to open flat, while others cause the pages to drape.

Variations of notebooks that allow pages to be added, removed, and replaced are bound by rings, rods, or discs. In each of these systems, the pages are modified with perforations that facilitate the specific binding mechanism's ability to secure them. 

[[Ring binder|Ring-bound]] and rod-bound notebooks secure their contents by threading perforated pages around straight or curved prongs. In the open position, the pages can be removed and rearranged. In the closed position, the pages are kept in order. 

[[Disc-binding|Disc-bound]] notebooks remove the open or closed operation by modifying the pages themselves. A page perforated for a disc-bound binding system contains a row of teeth along the side edge of the page that grip onto the outside raised perimeter of individual discs.