Generally refers to books?

2. Books in the library. Refers to the map, household registration and other books?

3. Do you mean stamps or stamps?

4. Refers to the book "He Tuluo"

Detailed explanation?

This book is edited by Liu Yi. This book systematically introduces the history and culture of China-books. The contents include an overview of ancient books in China, the classification and origin of books, rare books at home and abroad, book publishing and edition, etc.