THE MUCH ANTICIPATED THIRD INSTALLMENT IN THE WALL STREET JOURNAL BESTSELLING SERIES THE GREAT MENTAL MODELS.Solve problems. Think with clarity. Achieve your goals.The secret to better decision-making is learning things that wont change. Mastering a small number of versatile concepts with broad applicability enables you to rapidly grasp new areas, identify patterns, and understand how the world works. Dont waste your time on knowledge with an expiry date - focus on the fundamentals.The Farnam Street latticework of mental models gives you the durable cognitive tools you need to avoid problems and make better decisions.A mental model is a representation of how something works. Constructing mental models helps you to navigate the world efficiently and intelligently. Time and time again, great thinkers such as Charlie Munger and Warren Buffett have found mental models indispensable in both solving problems and preventing them in the first place. Cultivating stronger mental models is one of the most powerful things you can do to become a better thinker.