The most important way to invest in the stock market is to: try to buy at a relatively low price, and then sell at a relatively high price. Any attempt to buy at the lowest point or sell at the highest point is a sign of irrational greed, and the result will inevitably be either buying too early or missing out on opportunities. Therefore, when the market and individual stock prices enter the bottom area, investors should have the attitude of actively buying into potential losses, and positively select stocks to seize the right timing for purchase. The following are some main techniques for selecting stocks in the bottom area: