Emperor Huizong of Song
The Yingzao Fashi () is a technical treatise on architecture and craftsmanship written by the Chinese author Li Jie (李誡; 1065–1110), the Directorate of Buildings and Construction during the mid Song Dynasty of China. A promising architect, he revised many older treatises on architecture from 1097 to 1100. By 1100, he had completed his own architectural work, which he presented to Emperor Zhezong of Song. The emperor's successor, Emperor Huizong of Song, had the book published in 1103 in order to provide a unified set of architectural standards for builders, architects, and literate craftsmen as well as for the engineering agencies of the central government.