Charlie Munger is the Vice Chairman of Berkshire Hathaway and the financial partner Warren Buffett couldn't do without. He is also one of the greatest investors in the world. Munger has guided his investments with his own system for over four decades, generously sharing this system with generations of successful investors over the years. In this book, Tren Griffin presents the essential steps of Munger's investment strategy, derived from interviews, speeches, writings, and shareholder letters, and summarizes them here for the first time. Additionally, the book includes commentary from fund managers, value investors, and business case historians, offering a guide to developing the mental models necessary for success in all aspects of life, not just investing.