*HBR at 100: The Most Influential Management Ideas of the Last Century* is a collection published by Harvard Business Review that celebrates its centennial by highlighting the most impactful management ideas and insights from its archives. The book features key articles and thought leadership pieces that have shaped modern business practices and management theories over the past 100 years. It offers a retrospective look at the ideas that have influenced leadership, strategy, innovation, and organizational behavior, providing readers with valuable lessons and reflections on the evolution of management thinking.