"Remembering the past, especially as collectivity, is a political process, thus the politics of memory and commemoration is an integral part of the establishment of new political regimes, new identities, and new principles of political legitimacy. This volume is about the explosion of the politics of memory triggered by the fall of state socialism in Eastern Europe, particularly about the politics of its commemoration twenty years later. It offers seventeen in-depth case studies, an original theoretical framework, and a comparative study of memory regime types and their origins. Four different kinds of mnemonic actors are identified: mnemonic warriors, mnemonic pluralists, mnemonic abnegators, and mnemonic prospectives. Their combinations render three different types of memory regimes: fractured, pillarized, and unified. Disciplined comparative analysis shows how several different configurations of factors affect the emergence of mnemonic actors and different varieties of memory regimes. There are three groups of causal factors that influence the political form of the memory regime: the range of structural constraints the actors face (e.g., the type of regime transformation), cultural constraints linked to past political conflict (e.g., salient ethnic or religious cleavages), and cultural and strategic choices actors make (e.g. framing post-communist political identities)"--