Book excerpt: Technical indicators can inform you about different aspects of the market, such as trend, volatility, momentum, market strength, cycle, and so on. They are mathematical calculations that can be applied to a stock's price, volume, or, even, to another technical indicator. The result is a value that is used to anticipate future changes in prices. Indicators serve three broad functions-to alert, to confirm and to predict. When choosing an indicator to use for analysis, try to choose indicators that complement each other, instead of those that generate the same signals such as Stochastics and RSI, which are good for showing overbought and oversold levels. For analyzing trends, use trend following indicators like moving averages. For trading ranges, use oscillators like RSI. There are 42 technical indicators in this ebook with brief description and mathematical formula of each. Finding potential stocks are easy using these indicators especially if you have charting software which allows you to create your own filters. As always in technical analysis, learning how to read indicators is more of an art than a science.