To collect ancient books, you must have a pair of discerning eyes, and you must learn to choose ancient books that are worth your money. The rare books mentioned in the industry refer to the 60th year of Qianlong (1795) as the boundary, and the ancient books before that, whether official or private, are all rare books.
At present, the method of counterfeiting ancient books is mainly to remove the stitches of the newly printed version and soak it in tea and soy sauce, soak it for more than ten minutes, take it out and flatten it with bricks, and some counterfeiters remove the covers of other ancient books and put them on the old books. When identifying, you can smell the taste first, the book soaked in tea and soy sauce will still have some tea leaves and soy sauce flavor, and because it is a newly printed book, there will be a residual ink smell, and the real ancient books will only have the taste of paper because of their age, and there will be no other taste. In addition, the yellowing color of the old book is uneven, and the color difference between the middle of each page and the surrounding area is large. The binding line of a forged ancient book will look relatively new.
For the maintenance of books, you can spread the leaves of the spirit herb and put it in the book, put the branches in a plastic bag, and then put a few small holes in the bag and put it in the bookcase, so that it can prevent moths. (Zhang Jie)
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