André Kostolany was a legendary speculator, investor, and financial journalist. His work, often characterized by wit, wisdom, and a deep understanding of market psychology, provided invaluable insights into the world of finance. This book, frequently referred to as his final testament, encapsulates his accumulated knowledge and time-tested strategies. It delves into the cyclical nature of markets, the role of sentiment, and the importance of independent thinking, offering readers a unique perspective on wealth creation and risk management. Kostolany's teachings, presented with his signature blend of anecdotes and practical advice, remain highly relevant for both novice investors and seasoned professionals seeking to navigate the complexities of global financial markets.