Jiangshi jiaxun 蔣氏家訓 "Master Jiang's family instructions" is a book on Confucian family management written during the Qing period 清 (1644-1911) by Jiang Yi 蔣伊, xxx. The texts is written as an adhortation to Jiang's sons, with the instruction not to despise the poor and distressed, and not to exploit peasants by imposing exorbitant rents. Instead, it was important to study the writings of the ancients and to support those financially who are not able to buy books. In times of famine the greatest duty of a scholar-official was to support the hungry. When choosing a son-in-law, the family head had to look for the reputation of a family as well as his official rank, and when selecting a daughter-in-law the virtue of her parents was important. Jiang Yi said that a women becoming a widow under the age of 30 sui might be allowed to marry again.