Timothy Snyder has been called ‘the leading interpreter of our dark times’. As a historian, he has given us startling reinterpretations of political collapse and mass killing. As a public intellectual, he has turned that knowledge towards counsel and prediction, working against authoritarians and populists. After a quarter century at Yale, he now teaches history at the Munk School in the University of Toronto and his books, which have been published in over forty languages, include Bloodlands, Black Earth, On Tyranny, Road to Unfreedom, Our Malady and On Freedom. His work has inspired poster campaigns and exhibitions, sculptures, a punk rock song, a rap song, a play and an opera, and he has appeared in over fifty films and documentaries.