Ayn Rand was a 20th-century novelist and philosopher known for her development of the philosophy called Objectivism. Her most famous works include the novels Atlas Shrugged and The Fountainhead, which explore themes of individualism, capitalism, and the role of government in society. In her writings, Rand emphasizes the importance of reason and self-interest, arguing that individuals should pursue their own happiness and success. Her ideas have influenced various fields, including economics, politics, and literature, and continue to spark debate and discussion among readers and scholars today.