Hannah Fry is currently Professor in the mathematics of cities from University College London. In January 2025 she will join Cambridge University as the first Professor for the Public Understanding of Mathematics. In January 2024, Hannah was appointed to be the new president of the Institute of Mathematics and its Applications. Hannah is the author of The Mathematics of Love , The Indisputable Existence of Santa Claus and Hello World and regularly writes for The New Yorker. Her work has included using mathematical models to study patterns in human behaviour, and she has worked with governments, police forces, health analysts and supermarkets. Her TED talks have amassed millions of views and she has fronted television documentaries for the BBC, PBS and Bloomberg TV. She co-hosts the long-running science podcast, 'The Curious Cases of Rutherford & Fry' with the BBC and since 2020, she has been the host of the podcast created for the artificial intelligence company, DeepMind.