You can't buy it, you can only borrow it. And generally speaking, there will be time limit and quantity limit. If you borrow it and lose it, you have to pay many times the market price.

library

Organizations that collect, sort out and collect books and materials for people to read and refer to appeared as early as 3000 BC. Library has the functions of preserving human cultural heritage, developing information resources and participating in social education.

Historical records: As early as 3000 BC, there were various records carved on clay tablets in the temples of Babylon. The earliest libraries were the Greek Temple Library and the Affiliated Library of the Greek Philosophy Institute (4th century BC).

Document collection: Document collection is the foundation of the whole library work. Librarians should first make clear the collection principle, collection scope, collection focus and selection criteria of the library, and understand the collection situation of the library, the types and reproduction quantity of documents, the utilization rate and service life of various books, which books can be eliminated (see the elimination of books and periodicals) and which books and periodicals should be replenished. , but also need to master the publishing dynamics. Then replenish the collection by buying, exchanging and copying.