Warren Buffett is an American business magnate, investor, and philanthropist considered one of the most successful investors in the world. He developed an interest in business from a young age and graduated from the University of Nebraska, later attending Columbia Business School. Buffett created various business partnerships utilizing the value investing philosophy before acquiring Berkshire Hathaway and transforming it into a large holding company. Known as the "Oracle of Omaha," Buffett is renowned for his long-term investments in strong companies trading below their intrinsic value.