"Metaphysics: The Classic Readings" is an essential collection of the most influential attempts to depict the fundamental nature of reality or being - from Spinoza's doctrine of a single, indivisible substance to Russell's 'logical atomism', and from the Buddha's account of a causally interrelated world to Leibniz's one of casually independent 'monads'.
Extremely clear and helpful overview of all the main metaphysical writings of the last 2,500 years, both East and West, with concise contextualising comments.