At the age of 26, Warren Buffett established Buffett Partnership Limited, an investment partnership that flourished from 1956 to 1970. Throughout this period, Buffett communicated his investment strategies and philosophies through 33 letters to his partners. These letters not only documented his reflections and decisions during this remarkable phase but also laid the groundwork for the principles that would later define his success at Berkshire Hathaway. During the late 1960s, Buffett's performance was nothing short of phenomenal. In 1968 alone, he surpassed the Dow Jones Industrial Average by over 50%. Recognising the importance of transparency and understanding, Buffett meticulously detailed his investment processes in these letters, which he referred to as his "ground rules". These rules are not just historical artefacts but continue to be profoundly relevant for investors of all stripes, from novices to seasoned professionals. Warren Buffett's Ground Rules brings these invaluable writings together for the first time, with Buffett's explicit endorsement. Equity research expert Jeremy Miller curates the letters, providing insightful commentary and contextual analysis. Within the pages of this book, readers will discover the foundational tenets of Buffett's investment ideology, including his unique approach to diversification, his fervent belief in the power of compound interest, and his strategies for consistently outperforming market averages by a significant margin. Miller draws extensively and directly from Buffett's own words, unearthing a treasure trove of timeless advice. Through these insights, readers are introduced to a set of highly effective investment strategies that remain as pertinent today as they were in Buffett's early years. This book is more than just a collection of letters; it is a comprehensive guide to understanding one of the greatest investment minds of our time and applying these evergreen principles to achieve financial success. Whether you're an aspiring investor seeking to learn the basics or an experienced professional looking to refine your strategies, Warren Buffett's Ground Rules offers a wealth of knowledge and practical wisdom, making it an essential addition to any investment library.