In order to acquire real ancient or famous calligraphy and painting, celebrity calligraphy and painting purchasing organizations usually have cooperative relationship with one or more appraisers. As a qualified appraiser of calligraphy and painting, what qualities should he possess? Let's have a look with the celebrity calligraphy and painting acquisition.

，字画鉴定者所接触的地作品中，包括对书画作品，特别是原作的大量接触。因此，字画鉴定者本身要对古代文献的有所研读，对前人经验的有所汲取.其次，书画的风格、笔法等特征,名人字画收购离开对实际作品的感受、分析是无法认识与讨论的。书画作品的时代风格、个人风格及各种特征是客观存在的，而鉴定者能比较准确地把握它，则往往需要经过多方比较、反复揣摩，逐渐归纳总结，包括对自己以往鉴定标准不断修正的漫长历程。

First of all, among the works of calligraphy and painting appraisers, there are a lot of contact with calligraphy and painting works, especially the original works. Therefore, the appraisers of calligraphy and painting should study the ancient literature and learn from the previous experience. Secondly, the style and brushwork of calligraphy and painting, and the acquisition of celebrity calligraphy and painting can not be understood and discussed without the feeling and analysis of the actual works. The era style, personal style and various characteristics of calligraphy and painting works exist objectively, and the appraisers who can grasp it more accurately often need to go through multi-party comparison, repeated speculation, and gradually sum up, including the long process of constantly revising their previous appraisal standards.

优良的字画鉴定者会在头脑中镌刻下一部形象的书法史和绘画史，成为鉴定的依据。鉴定是以比较为内容的。实际的鉴定过程,除实物间的比勘外，更多的则是鉴定者将被鉴定的实物与自己头脑中存储的风格标准、作品样板和相关知识进行比较、验证，从而得出结论。

A good appraiser of calligraphy and painting will engrave an image of the history of calligraphy and painting in his mind, which will become the basis of identification. Identification is based on comparison. In the actual identification process, in addition to the comparison and exploration between objects, more is the appraiser to compare and verify the identified objects with the style standards, work models and related knowledge stored in his mind, so as to draw a conclusion.

鉴定者实践所受到的局限，必然导致鉴定的局限。由于鉴定的感知成分，鉴定标准亦具有个性化。对于某些作品，鉴定家们有时会得出不同、甚相反的结论。

The limitation of appraiser's practice inevitably leads to the limitation of appraisal. Due to the perceptual components of identification, the identification criteria are also personalized. For some works, appraisers sometimes come to different or even opposite conclusions.