This is a book that contains very few numbers. Instead, it is about meeting people who have opened my eyes. It was facts that helped him explain how the world works. But it was curiosity and commitment that made the late Hans Rosling, author of worldwide bestseller Factfulness, the most popular researcher of our time. This is Hans Rosling's own story of how a young scientist learned became a revolutionary thinker, and takes us from the swelter of an emergency clinic in Mozambique, to the World Economic Forum at Davos.