What is a bookmark?

In order to mark where to read and record the progress of reading, the small pieces in the book are mostly made of paper, celluloid, ceramics, etc.

The bookmark screen is random, and the materials are widely used. Even a used train ticket or airplane ticket can be used as a bookmark. In addition to the content of the picture, the artistic bookmarks often have innovations in materials and shapes. Bookmarks are more convenient than book-folding and other page numbering methods, and the damage to the book is lower. It is a very good page numbering method.