The Encyclopedia Tyrannica transcends the conventional boundaries of an encyclopedia, serving as a comprehensive research guide for scholars, students, and experts in the fields of authoritarianism and democratization. It delves deep into the historical, theoretical, and methodological underpinnings of key concepts while providing exhaustive literature reviews and exploring their varied applications across different world regions. Recognizing the challenges posed by the expanding landscape of authoritarian studies, over thirty experts collaborated to streamline the vast literature, exposing blind spots and accounting for nuances. Whether seeking foundational knowledge or navigating specialized topics, the ‘Tyrannica’ stands as the definitive resource in dictatorship studies. By bridging gaps between theory and practice, novice and expert, it aims to foster a deeper understanding of autocratic regimes, their classifications, features, actors, behavior, worldviews, and transitions. Designed with a structured approach, the ‘Tyrannica’ organizes entries logically, offering both alphabetical and thematic arrangements in seven sections. Additional information boxes enhance understanding by providing context-specific examples and understudied aspects. Intended as the quintessential reference for scholars and students alike, this encyclopedia extends beyond academia to policymakers and experts, offering a systemic overview of dictatorship studies and its intersections with democratization research. Area study experts will find alternative theories and regional variations elucidated, while educators can utilize the book as a teaching aid. This book was co-funded by the Erasmus+ programme of the European Union within the M.O.R.D.O.R. project (2021-1-PL01-KA220-HED-000023034). Didactic Companion The Didactic Companion to the Encyclopedia Tyrannica offers a comprehensive and innovative pedagogical resource for educators and students navigating the complex terrain of comparative authoritarianism and democratization. Rooted in the interdisciplinary expertise of its contributors and the collaborative efforts of the M.O.R.D.O.R. project, this companion bridges scholarly research with practical classroom application, providing structured learning outcomes, detailed lesson plans, and methodological insights tailored to contemporary political realities. By addressing critical challenges such as conceptual blind spots, regional biases, and the pitfalls of regime classification, the companion equips users with the tools to foster critical thinking and meaningful engagement with the dynamics of dictatorship and democracy across diverse global contexts. Its modular design and emphasis on flexibility allow for easy integration into existing curricula. https://ibidem-verlag.de/pdf/1882_didactic_companion.pdf