21 Lessons for the 21st CenturyBy: Yuval Noah Harari **THE NUMBER ONE BESTSELLER** In twenty one bite sized lessons, Yuval Noah Harari explores what it means to be human in an age of bewilderment. How can we protect ourselves from nuclear war, ecological cataclysms and technological disruptions? What can we do about the epidemic of fake news or the threat of terrorism? What should we teach our children? The world renowned historian and intellectual Yuval Noah Harari takes us on a