First, price based on quality. Whether they are calligraphy works or paintings, they are divided into high, medium and low grades. The works are intact, undamaged and clean as new. When viewed through light, there are no pasted backings for the top grade. The works have backings, but the works are complete and not If the work affects the style and charm of the original work, it is of medium quality; if the work is pieced together from pieces, the back is full of linings, there is newly patched silk or paper, and re-painting can be seen, it is of low quality. In addition, the paper version is better than the silk version, and the silk version is the lowest. Second, discuss the price based on the price. The inscriptions on calligraphy and painting are divided into upper and lower inscriptions. The upper inscription accepts the font size and title of the calligrapher, and the lower inscription contains the name, time, and location of the calligrapher. Some also include the author's age and place of origin. In actual transactions, there is no upper inscription. Works are better. Generally speaking, the more inscriptions on calligraphy and painting works, the better. A line of words is called a stick of incense, and inscriptions by celebrities are called helpers, which can increase the value of the work. In addition, the recording, collection, sealing, etc. of calligraphy and painting have a great impact on improving the value of the work itself. Third, price based on content. Among calligraphy works, formal scripts are the most expensive. Painting works are of the highest quality, landscapes, figures, flowers, birds, bamboos, and rocks, and animals, insects, and fish. Fourth, painting is higher than calligraphy. Generally speaking, Chinese painting is more technically difficult than calligraphy, with more exquisite brushwork, more complex craftsmanship, realistic and full composition, gorgeous and elegant colors, and grand momentum, which determines that its value is higher than that of calligraphy works. Please refer to the above information. I have worked hard and hope to adopt it.