This book is a topical study of populist constitutionalism and illiberal democracies,exploring their roots in constitutional imagination as well as their normativeentrenchment and performance in political reality. It provides insightful analysis ofrepublican constitutionalism, focusing on the role of people in radical democracyand revolutionary constitutional reform. Furthermore, the outlook, adequacyand performance of constitutional principles in times of democratic ruptures areassessed. The contributors examine the rise of populist constitutionalism and themain trends that have led to the current, ongoing crises in liberal democracy. Thebook includes original analyses of populist constitutionalism from the viewpointof emotions and constitutional imagination, as well as a special chapter devotedto the challenges posed to constitutional democracy by COVID-19. Combiningtheoretical contributions, comparative typologies and important case studies, thespread of populism and illiberal democracy in Europe is critically explored.Populist Constitutionalism and Illiberal Democracies is a timely contribution to thelively discussion surrounding constitutional law, comparative constitutional law,comparative constitutionalism and political science regarding the rise and spreadof illiberal democracies, authoritarian political regimes and revolutionary, radicaldemocratic and populist constitutionalism.