The Four Filters Invention of Warren Buffett and Charlie Munger examines each of the steps they perform in framing and making an investment decision. The author believes that Buffett and Munger expanded the field of Behavioral Finance by using this thoughtful and effective process. The genius of Buffett and Munger's four filters process was to capture all the important stakeholders in their decision making. Imagine...Products, Enduring Customers, Managers, and Margin-of-Safety...all in one mixed qual + quant formula. This second edition contains additional examples in this amazing process. This edition also contains the author's look into their 1988 valuation of Coca-Cola. Each chapter has additional specific examples. The author also discusses additional insights he has learned in the past five years since the first edition was released.