This volume brings together an international team of prominent scholars from a range of disciplines, with the aim of investigating the many facets of the Chinese Communist Party’s 100-year trajectory. It combines a level of historical depth mostly found in single-authored monographs with the thematic and disciplinary breadth of an edited volume. This work stands out for its long-term and multiscale approach, offering complex and nuanced insights, eschewing any Party grand narrative, and unravelling underlying trends and logics, composed of adaption but also contradictions, resistance and sometimes setbacks, that may be overlooked when focusing on the short term. Rather than putting forward an overall argument about the nature of the Party, the many perspectives presented in this volume highlight the complex internal dynamics of the Party, the diversity of its roles in relation to the state, as well as in its interaction with society beyond the state. Our historical approach stresses impermanence beyond the apparent permanence of the Party’s organisation and ideology while also bringing to light the recycling of past practices and strategies. Looking at the Party’s evolution over time shows how its founding structures and objectives have had a long-lasting impact as well as how they have been tweaked and rearranged to adapt to the new economic and social environment the Party contributed to creating.