An ancient Chinese military treatise attributed to 姜子牙 jiāng​zǐ​yá, also known as the Six Strategic Teachings; it is one of the Seven Military Classics 武经七书 wǔ​jīng​qī​shū

The "Three Strategies of Huang Shigong", one of the Seven Military Classics of ancient China traditionally attributed to 黄石公 huáng​shí​gōng and given to 张良 zhāng​liáng