Book excerpt: Which dimensions of the religious experience of the ancient Greeks become tangible only if we foreground its local horizons? This book explores the manifold ways in which Greek religious beliefs and practices are encoded in and communicate with various local environments. Its individual chapters explore 'the local' in its different forms and formulations. Besides the polis perspective, they include numerous other places and locations above and below the polis-level as well as those fully or largely independent of the city-state. Overall, the local emerges as a relational concept that changes together with our understanding of the general or universal forces as they shape ancient Greek religion. The unity and diversity of ancient Greek religion becomes tangible in the manifold ways in which localizing and generalizing forces interact with each other at different times and in different places across the ancient Greek world.