Do you want to ask, "There are not enough pages in different binding methods, how to calculate the number of pages?" This situation is that different binding methods will affect the number of pages of books and reduce the number of pages that can actually be used.

The specific method is as follows:

1. In paperback books, the pages are directly glued together or sewn on the spine. This binding method is relatively simple and low cost, but it will lead to an increase in spine width and a decrease in available pages.

2, hardcover books by pasting the pages on cardboard or cardboard, and covered with materials such as cloth or leather, to increase the firmness and texture of the book. Hardcover books usually use thicker paper, which will increase the thickness of each page, thus reducing the number of available pages.

3. Face-loading is a binding method that directly sticks pages together with glue. Different from paperback, face-mounted has no spine, which can reduce the thickness of books and the number of pages occupied.