1、 Remember "ten paintings and nine fakes": calligraphy and painting are many fakes among works of art. Because only those who have some basic knowledge can copy them, this gives a chance for those with bad intentions. Of course, writing and painting may not reach a certain level, so most of the imitations are not of quality. If you want to buy authentic products, on the one hand, you can rely on your education, on the other hand, you can also ask experts to look. If you want to treasure contemporary artists, the safer way is to buy them directly from calligraphers and painters or participate in the auction of reputable auction houses.

二、舊書回收書畫質量的優劣問題：即便是真品，也有一個優劣的問題，即畫家的精心之作與敷衍之筆。還有各個書畫家的擅長面，若并非書畫家的強項，即便真品，價錢也受影響。還要關注一個畫家的藝術的鼎盛時期，有的書畫家到了暮年才技藝精到，那么早中年的作品價錢當然要低于暮年時期的作品。收藏書畫作品時

2、 The quality of used books, paintings and calligraphy: Even if it is genuine, there is also a problem of quality, that is, the painstaking work and perfunctory brush of the painter. There are also the advantages of various calligraphers and painters. If it is not the strength of calligraphers and painters, even if it is genuine, the price will also be affected. We should also pay attention to the heyday of a painter's art. Some calligraphers and painters are not skilled until their twilight years, so the price of works in the early and middle ages is certainly lower than that in the twilight years. When collecting calligraphy and painting works

收藏、鑒定、經營書畫時，必須對書畫每個部位的名稱術語，有了解：1．命紙：就是畫心的托紙，無論畫心是紙的還是絹的都有一層托紙。如把紙托揭掉，畫心則減色無神了，即無生命，故名“命紙”。2．二層：揭下的托紙，有時稍加勻填，即能謂其真畫者，叫“二層”，又叫“魂子”，因其是畫心二層，是命紙畫的靈魂。也叫“混子”，是以假亂真的意思。3．讓局：就是畫心四邊和裱邊之間留有一分寬的空隙。謂之“讓局”。4．覆背：畫背后整個的裱紙。5．隔界：在條幅的上下或者手卷的前后，裱工加上一條不同顏色的綾或絹叫“隔界”或叫“隔水”。6．詩堂：直幅畫心上端，掛上一塊紙方叫“詩堂”。一因器心短，經過襯托后比較得體；二是為了題詩贊畫，所以叫“詩堂”，有人亦稱“玉池”。

When collecting, appraising and managing paintings and calligraphies, you must have an understanding of the names and terms of each part of the paintings and calligraphies: 1. Life paper: it is the paper for drawing the heart. Whether the heart is paper or silk, there is a layer of paper. If the paper holder is removed, the heart of the painting will be colorless and lifeless, so it is called "life paper". 2. The second layer: the removed supporting paper, sometimes slightly filled in, can be called the true painter, called "the second layer", also called "soul son", because it is the second layer of painting heart and the soul of life paper painting. Also called "bastard", it means to confuse fake with real. 3. Give way: there is a wide gap between the four sides of the painting center and the mounting edge. It is called "concession". 4. Back covering: the whole paper mounted on the back of the painting. 5. Boundary: On the top and bottom of the banner or at the front and back of the scroll, the framer adds a different color of silk or silk called "boundary" or "water separation". 6. Poetry hall: hang a piece of paper on the top of the painting and call it "Poetry Hall". First, because of its short heart, it is more appropriate after setting off; The second is to inscribe poems and praise paintings, so it is called "Poetry Hall". Some people also call it "Jade Pool".