2. Signature book: Some books are written by famous writers, so it is more meaningful and valuable to add celebrity signature messages to the title page.
3. First edition: Most of the first edition books are printed and proofread by the author himself, which has always been valued by experts in edition science.
4. Uncut book: refers to a book whose edges have not been cut by the bookbinder's tools, also known as a book with rough edges or a book with rough edges.
5. Orphaned edition: For example, Huang Shang's Collection of Brocade was only loaded with two volumes at that time, so it became a treasure.
6. Original Hong Kong and Taiwan: The original Hong Kong and Taiwan literature and history is very popular with mainland collectors because of its exquisite printing. Such as Yu Guangzhong's prose collection "The Miracle of the Left Hand".
7. Version of ancient books: With the passage of time, the longer the age, the more valuable the books are.
8. Cultural Revolution Edition: Because the "Cultural Revolution" occupies an important page in the world history, the number and exquisite printing of books during the Cultural Revolution are a must, which has won unanimous praise from collectors at home and abroad. For example, Little Red Book and Picture Story Book have all become popular books.