Peter Drucker's *A Functioning Society* unveils the vital role of well-managed organizations across all sectors – business, government, and social – as the cornerstone of a thriving modern society. This curated collection of Drucker's essential essays provides unparalleled insight into how effective management, not solely economic indicators, determines societal health. Challenging the conventional wisdom that profitability is the sole metric of success for businesses and governments alike, Drucker demonstrates that organizations must prioritize creating customer value and addressing social needs to earn their legitimacy. His enduring work reveals how only through purposeful leadership, effective management, and a focus on serving society, can individual fulfillment and communal prosperity be truly achieved. Only through this multifaceted approach can we build truly *functioning* societies.