Hans Rosling was a distinguished Swedish physician and statistician, celebrated for his dynamic and enlightening presentations on global health and development. A professor at the Karolinska Institute and co-founder of the Gapminder Foundation, he was known for his use of statistics and software to make complex data accessible, notably in his popular TED Talks. Rosling’s early work in Africa led to the discovery of the cause of the paralytic disease konzo. His Trendalyzer software, which visualizes data engagingly, was acquired by Google, marking his significant impact in data visualization and public education.