The article discusses how insider trading is a big problem in China's securities market and hinders its growth. The current laws in China are not strong enough to prevent insider trading effectively. The author suggests ways to improve the law to stop insider trading before it happens. The book provides a detailed analysis of insider trading in China, including who can be considered insiders, what counts as inside information, and the consequences of illegal insider trading. The author also proposes reforms based on interviews with Chinese stakeholders and comparisons with other countries' laws. This information is valuable for anyone interested in Chinese securities markets, including students, lawyers, business people, and regulators.