Value Stock Investing is the practice of identifying stocks trading below their intrinsic value and building a diversified portfolio of such positions. You analyze financial statements, calculate intrinsic value using models like discounted cash flow (DCF), and compare to the market price. If market price is well below intrinsic value, you buy and hold long-term. You practice discipline: stick to your investment criteria, avoid emotional buying/selling, and reinvest dividends. You track holdings, monitor quarterly results, and adjust positions based on changing fundamentals.