The Four Pillars of Investing, written by William J. Bernstein, is a comprehensive guide to successful investing. The book covers the four essential pillars of investing - theory, history, psychology, and business. It provides readers with a solid foundation of investment knowledge and offers practical strategies for building and managing a successful investment portfolio. The Four Pillars of Investing combines academic research with real-world examples to help readers make informed investment decisions. Whether you are a beginner or an experienced investor, this book is a valuable resource.