Analyzes revenue, expenses, and the "earning power" of a company over time.
While he acknowledges that intangible assets (like brand reputation) have value, he warns against paying a premium for them. Graham famously preferred buying companies trading below their net working capital (a strategy known as the "Net-Net" approach), a method that effectively allowed investors to buy the business for free and pay nothing for its future earnings.
Without the PDF’s lessons, you cannot calculate a margin of safety. For example:
