Nassim Taleb is a Lebanese-American scholar, statistician, and former derivatives trader whose research focuses on probability, uncertainty, and risk management. He is best known for his influential books, including 'The Black Swan', which explores rare and unpredictable events, and 'Antifragile', which examines systems that benefit from disorder. Taleb has held academic positions at several universities and has contributed to both theoretical and practical approaches to risk in finance and beyond.