Timothy Snyder is an American historian and author, known for his expertise in European history, particularly concerning Eastern Europe and the Holocaust. He is a professor at Yale University and has written several influential books, including "Bloodlands: Europe Between Hitler and Stalin," which examines the impact of totalitarian regimes in the 20th century. Snyder is also recognized for his commentary on contemporary politics and democracy. He often discusses the importance of historical awareness in understanding current events, emphasizing the lessons that can be learned from history to combat authoritarianism and promote democratic values.