Weimar casts a long shadow over post-war political thought. The Weimar Republic is used to understand contemporary threats to democracy and to critique or defend modernity. It has generated a series of political lessons that are invoked whenever democracies are challenged. This book questions the historical validity of most of these lessons and their applicability to contemporary political orders. It shows how Weimar lessons are often influenced by partial and superficial readings of events, often intended to advance particular political projects. The chapters give detailed accounts of how so-called Weimar lessons have influenced, if not shaped, political debates in Germany, elsewhere in Europe, and the United States.