The spiral binding technique is practical and useful for arranging written work in a spiral bound notebook. A coil of metal or plastic which rotates through punched holes on the page edges serves as the binder, and is referred to as spiral. It allows the notebook to lie flat which enables users to write on both sides of the pages and access the content without the pages flipping shut. The user can easily remove or insert pages allowing them the flexibility to modify the contents of the notebook over time. Because of their versatility, convenience, and accessibility, spiral bound notebooks are popular among students, professionals, and artists.