He Xiu, whose courtesy name was Junzhuo and whose name was Li'an, was from Wanping (now Beijing). Yongzheng Jinshi, official to the head of the Zongren Mansion. The whole book is mostly textual research, with a total of 120 articles. The majority of the content is about classics and meanings, followed by the content about primary school, and also touches on the study of characters, rhyme, etc. Among them, the discussion of the Six Books is quite similar and different from the old theory. The word "bald" should be understood from the word "He". For example, the word "shoot" means "shooting" from the body to "cun", and it means holding a bow in the shape of a bow. The explanations are all original. The book collects the "Essentials of Learning", which all respect the thoughts of Yan Ruoji, Gu Yanwu, Zhu Yizun, and Mao Qiling. It is included in the "Shoushan Pavilion Series" and was re-edited and supplemented by Jinshan Qian in the 24th year of Emperor Daoguang's reign in the Qing Dynasty (1844) based on the Mohai Jinhu edition.
