Binding types refer to the various methods used to hold together the pages of a book or document. Common types include spiral binding, where a plastic or metal coil is threaded through holes along the edge, allowing pages to lay flat. Another popular option is perfect binding, often seen in paperback books, where the pages are glued together at the spine for a clean finish. Each binding type serves different purposes and offers unique benefits. For instance, hardcover binding provides durability and a professional appearance, making it ideal for important publications. In contrast, saddle stitching is a cost-effective choice for smaller booklets, using staples to secure the pages.