The Four Filters Invention of Warren Buffett and Charlie Munger" examines each of the basic steps they perform in "framing and making" an investment decision. This book is a focused look into this amazing invention within "Behavioral Finance." The genius of Buffett and Munger's parsimonious four filters process was to "capture all the important stakeholders" in a "multi-variable" equation or formula. Imagine...Products, Enduring Customers, Managers, and Margin-of-Safety... all in one mixed "qual + quant" formula. Other important ideas are embedded in each chapter. The book can be used as a supplemental textbook in a Valuation or Decision Sciences course.