Gu Ping Yuan was regarded as the ""Merchant King"" in Anecdotes about Merchants in the Ming and Qing Dynasties. When he was young, he started from selling a bag of illegal salt; just in a few decades, he seized the opportunity and dealt with business groups, governments, compradors and people in various trades; finally, he extended the business to all walks of life and swept both the political and business circles, becoming the richest man at that time... His progress and retreat, show and hide, prosperity and counterattack, conspiracy and overt scheme, commercial skills and political ideas, network operation and wisdom of conducting in the society, words and deeds show the perfect ""playing methods"" of Chinese merchants in the thousands of years. Opening the Great Merchant (5: Breakout), you can understand the supreme wisdom and secret codes of doing business under China's traditional relationship between politics and commerce.