Dr. Stephen R. Covey is recognized as one of Time magazine's most influential Americans and an expert in leadership and organizational development. He outlines the key principles of principle-centered leadership, which include empowering others through shared principles rather than constant control. Covey's model has five levels - personal, interpersonal, managerial, organizational, and societal - and emphasizes trust, continued learning, service to others, and maintaining a positive outlook. The document discusses how Covey's theory can be applied to school administration through shared vision, trust-building, and empowering teachers.