The Great Mental Models: General Thinking Concepts by Shane Parrish is the compendium of generalized thinking ideas to improve decisions and address challenges. From the knowledge paradigms of multiple disciplines, Parrish expounds mental models such as first principles, second-order thinking, and inversion. Each chapter of this highly valuable book is dedicated to teaching the reader how to effectively navigate through the problems and become a wise decision-maker in work, personal life, and more. A good book for anyone seeking to pose and answer important questions.