Born and raised in the south of the Netherlands, Professor Hans Clevers studied biochemistry and medicine at Utrecht University. After receiving his immunology PhD in 1985, he trained as a molecular biologist through a four-year Harvard Postdoc. Hans returned to Utrecht and became Professor of Immunology at the University Hospital in 1991. In 2002 he was appointed Professor of Molecular Genetics at Hubrecht Institute. Between 2012 and 2018 Hans was President of the Royal Netherlands Academy. His work on the developmental signalling pathway ‘Wnt’ led him to discoveries in the cancer and stem cell fields, ultimately resulting in technologies to grow human stem cells into mini organs (organoids) in a dish. He holds knighthoods in the Netherlands, France and Germany.