From food punnets to credit cards, plastic facilitates every part of our daily lives. It has become central to processes of contemporary socio-material living. Universalised and abstracted, it is often treated as the passive object of political deliberations, or a problematic material demanding human management. But in what ways might a 'politics of plastics' deal with both its specific manifestation in particular artefacts and events, and its complex dispersed heterogeneity? Accumulationexplores the vitality and complexity of plastic. This interdisciplinary collection focuses on how the presence and recalcitrance of plastic reveals the relational exchanges across human and synthetic materialities. It captures multiplicity by engaging with the processual materialities or plasticity of plastic. Through a series of themed essays on plastic materialities, plastic economies, plastic bodies and new articulations of plastic, the editors and chapter authors examine specific aspects of plastic in action. How are multiple plastic realities enacted? What are their effects? This book will be of interest to students and scholars of sociology, human and cultural geography, environmental studies, consumption studies, science and technology studies, design, and political theory.