In common sense of calligraphy, cup generally refers to inkstone, also called inkstone, which is one of the traditional Chinese handicrafts. Ink stone, pen, ink and paper are called the traditional Four Treasures of the Study in China, and they are the necessary tools for China's calligraphy. Materials are also widely used, among which HongLing inkstone in Qingzhou, Shandong, Duanyan in Zhaoqing, Guangdong, Shexian inkstone in Anhui and Taohe inkstone in Zhuoni, Gansu are the most prominent.
Calligraphy, especially China's, refers to writing with its brushwork, structure and composition according to the characteristics and significance of words, making it a beautiful work of art. China's calligraphy is known as: poetry without words, wireless dance; Painless paintings, silent music. China's calligraphy art needs subtle and overlapping changes in order to achieve vigorous brushwork and vivid image.