It should be that the seal in the library has the function of marking and symbolizing the materials in the library, and also has the function of decorating and beautifying books. However, stamping at random in the library will destroy the layout design of books and affect the appearance.

From the aesthetic point of view, the seal of book title page should be regarded as an element of layout design, or the original composition form should be adapted or changed to make the original layout design more perfect; As for the seal on the cover of a periodical, it is only a mark, so as not to affect the picture effect and integrity of the cover as much as possible.

The position management of the collection seals of title pages and periodical covers with different layout designs is different in each library.