1. Book export is an important part of international trade. Book publishing companies in various countries can obtain foreign exchange income and expand market share by selling their publications overseas.

2. Book import is an important link in international trade. Readers all over the world can enrich their reading experience and knowledge reserves by importing books, which also provides support for local international trade imports.

3. Book trade also plays an active role in cultural exchange and folk friendship. Through book trade, publications from different countries and regions can spread and learn from each other, and promote cultural diversity and exchange and mutual learning.

4. Book trade has also promoted the development of new formats such as cross-border electronic commerce and digital publishing. With the continuous progress and application of digital technology, the digitalization of books, online publishing and online sales have become new growth points and development trends of international trade.