Perfect binding is a popular bookbinding method used for paperback books. In this process, the pages are gathered and aligned, then glued together at the spine with a flexible adhesive. A cover is then attached, creating a clean and professional finish. This technique is commonly used for magazines, catalogs, and other printed materials. Perfect binding allows for a flat spine, making it easy to print titles and graphics, and it can accommodate a wide range of page counts. It is cost-effective and suitable for both small and large print runs.