Peter Senge is an American systems scientist and author, best known for his work in organizational development and learning. He gained prominence with his book, *The Fifth Discipline*, published in 1990, which introduced the concept of the "learning organization." This idea emphasizes the importance of continuous learning and adaptation within organizations to thrive in a complex world. Senge is the founding chair of the Society for Organizational Learning and has contributed significantly to the fields of management and education. His work integrates concepts from systems thinking, personal mastery, and team learning, encouraging organizations to foster a culture of collaboration and innovation.