Guanzi is a type of ancient Chinese text. It's usually made up of stories, poems and advice written by people in China from about 400 BC to 200 BC. People wrote about things like how to be a good leader, how to keep people happy, and how to solve problems. Guanzi often used symbols and images—not real words—to make it easier to remember. Guanzi is like a history book, but mostly it's about people's ideas and advice.