"Volume represents real money flowing in and out. Although candlestick patterns may not always be continuous, the flow of funds reflects continuity in the short to medium term." Once you master the direct relationship between volume and price, you unlock the key to understanding trends. price is the result and "trading volume" is the motivation Trading volume represents the actual flow of funds in and out of the market. While candlestick patterns don't always persist, trading volume reflects the short- to medium-term sustainability of fund flows. Readers are advised to memorize the "rules of thumb" related to trading volume. These principles frequently appear in the charts throughout the book and are widely applied in actual trading. The author entered the financial market in 2005 and has been focusing on candlestick charts in different markets, researching trading strategies and quantitative strategies, as well as various risk control strategies. He has published 10 books on financial securities trading to help readers learn systematically.