When it comes to investing in stock markets for the long term, one of the most popular and effective investing strategies, often opted by seasoned investors is value investing. Value investing essentially involves putting your bets on undervalued stocks that are trading for less than their intrinsic value in the market currently, but are fundamentally strong. The premise is that a fundamentally strong business will eventually pick up pace and give returns worth its value to patient investors. Many successful investors Like Peter Lynch, Warren Buffet and others are strong advocates of value investing and have followed certain principles of value investing to be successful at it. In this article I will discuss what these principles are, and how you can incorporate them in your investment strategy.