Ancient books on human nature and commercial warfare

Guiguzi, also known as cooperation strategy. It is said that it was compiled by scholars after Mr. Guigu according to Mr. Guigu's remarks. This book focuses on tactics and debating skills. China's classic books on power, strategy, business and war. Guiguzi, surnamed Wang, was a singer in the Spring and Autumn Period. He is a famous hermit in the history of China and the most mysterious person so far. With great wisdom and talent, the Ghost Valley Sect was founded. He is not only good at cultivation, but also good at calculation. He has a unique strategy of vertical and horizontal sex. He is the originator of Taoism, strategist and strategist, and also a great thinker who keeps pace with Confucius and Mencius.