Perfect Binding is a popular bookbinding method used for paperback books. In this process, the pages are gathered together and the spine is ground down to create a rough surface. This allows a strong adhesive to be applied, which holds the pages securely in place. The cover is then wrapped around the spine and glued to the pages, giving the book a clean, professional look. This technique is commonly used for magazines, catalogs, and novels because it is cost-effective and allows for a flat spine that can display titles and artwork. Perfect Binding is ideal for medium to large print runs, making it a favorite among publishers.