Yuval Noah Harari, bestselling historian and philosopher, is considered one of the world's most influential intellectuals today. His popular books--including Sapiens: A Brief History of Humankind, Homo Deus: A Brief History of Tomorrow, 21 Lessons for the 21st Century, and the series Sapiens: A Graphic History and Unstoppable Us--have sold more than forty-five million copies in sixty-five lan-guages. Harari, with his husband, Itzik Yahav, cofounded Sapienship, a social impact company with projects in the fields of education and storytelling, whose main goal is to focus the public conversation on the most important global challenges facing the world today. Harari has a PhD in history from the University of Oxford. He is a Distinguished Research Fellow at the University of Cambridge's Centre for the Study of Existential Risk, and lectures in the depart-ment of history at the Hebrew University of Jerusalem.