Mr. Zhang Ruiling is known as the first person in Chinese regular script. His calligraphy has a rigorous structure, is square and wonderful, steady and agile, with hard lines yet soft, rich rhythm, and is quaint and thick. The artistic effect of its calligraphy lines is truly called "Zhechai Gu" and enjoys a high reputation at home and abroad. His works have been presented as national treasures to many heads of state and dignitaries of many countries, winning honors for the country. On the left and right sides of the auditorium of the National Committee of the Chinese People's Political Consultative Conference hangs a huge Chinese character of Zhang Er written by Mr. Zhang Ruiling. It has been highly praised by many viewers.

The prices of works from different periods are also different, ranging from about 5,000 to 20,000 per square foot. It depends on the works!