This book examines human rights and penitentiary law in Central Eastern European and Latin American countries from a comparative perspective. How are penitentiary systems and human rights currently being transformed in both regions? This question guides contributors hailing from both Central Eastern Europe and Latin America, filling the gaps at both the international and national level. The book compares Central Eastern European countries with Latin American countries, shedding new light on similarities and differences alike. The main themes of this book are the analysis of penitentiary systems in different countries and a general analysis of criminal and criminological issues. The respective chapters examine how penitentiary laws are changing within different contexts and regulatory regimes. The book seeks to cross boundaries to understand new divisions, fragmentations, and forms of authoritarianism in today’s world, more specifically in Poland, North Macedonia, Chile, Argentina, Peru and Mexico.