Michael Sandel is an American political philosopher and professor at Harvard University. He is best known for his course, "Justice," which explores moral and ethical questions in society. Sandel's engaging teaching style has made the course popular, attracting thousands of students and viewers worldwide. Sandel has authored several influential books, including Justice: What's the Right Thing to Do? and The Tyranny of Merit. His work often focuses on themes of justice, democracy, and the moral implications of economic inequality. Through his writings and lectures, he encourages critical thinking about the values that shape our society.