On Tyranny: Twenty Lessons from the Twentieth Century by Timothy Snyder is a powerful examination of the dangers of authoritarianism, drawing lessons from history to warn against the rise of tyranny in modern society. In this concise yet impactful book, Snyder identifies the warning signs of fascism, using examples from Nazi Germany, Stalinist Russia, and other totalitarian regimes. Each lesson offers practical advice for individuals to safeguard democracy, resist the erosion of civil rights, and stand up against oppression. Snyder’s work is a call to action, urging readers to remain vigilant, critical, and active in defending the values of freedom, justice, and truth. With its timely message, On Tyranny serves as a crucial resource for those concerned about the threats to democratic institutions in the contemporary world.