Do you keep the book cover and waist cover?

Everyone kept the jacket and waist of the book.

In short, when reading a book, you will take off your coat and waist seal, but you will put it back on after reading it. First of all, the original starting point of protective seals and girdles is to protect books and increase selling points. Some girdles are also exquisite and have certain ornamental value. Secondly, the protective seal and waist seal can be reused, such as bookmarks and handbooks. So on the whole, I'd better keep it.

Introduction:

A book is a Chinese character, pinyin: shū, which is the main tool used by human beings to record all achievements. A book generally refers to a collection of bound papers printed with words. It is also an important medium for human beings to blend feelings, inherit knowledge and gain experience, which is of great significance to the development and inheritance of human civilization. It is an important tool for human beings to spread and record knowledge.

Tools for recording, analyzing, summarizing, organizing, discussing and explaining information, whether there are illustrations, hard copies or paperbacks, and whether there are envelopes, including preface, introduction, catalogue and index, are devices for increasing knowledge, deepening understanding, promoting and educating the human brain. The device needs visual or tactile form to exist and use.