The Book of Lord Shang (traditional Chinese: 商君書; simplified Chinese: 商君书; pinyin: Shāng jūn shū) is an ancient Chinese text from the 3rd century BC, regarded as a foundational work of "Chinese Legalism". The earliest surviving of such texts (the second being the Han Feizi), it is named for and to some extent attributed to major Qin reformer Shang Yang, who served as minister to Duke Xiao of Qin (r. 361 – 338 BC) from 359 BC until his death in 338 BC and is generally considered to be the father of that state's "legalism".
The Book of Lord Shang includes a large number of ordinances, essays, and courtly petitions attributed to Shang Yang, as well as discourses delivered at the Qin court. The book focuses mainly on maintaining societal order through a system of impartial laws that strictly mete out rewards and punishments for citizens' actions. The first chapters advise promoting agriculture and suppressing other low-priority secondary activities, as well as encouraging martial virtues for use in creating and maintaining a state army for wars of conquest.
