Zhuge Liang assisted Shu Han for 27 years and successively served as military commander, military general and prime minister. Rich political practice and long war career have enabled Zhuge Liang to gain many experiences and lessons in military management, war, state affairs and diplomacy. So Zhuge Liang wrote a lot and spread widely. Jiang Yuan and Sixteen Cheap Strategies are two of Zhuge Liang's many works.
Jiang Yuan, a Complete Collection of Ancient Books in China, focuses on Jiang Dao.