Berkeley: Ideas, Immaterialism, and Objective Presence offers a novel interpretation of the arc of George Berkeley's philosophical thought, from his theory of vision through his immaterialism and finally to his proof of God's existence. Keota Fields unifies these themes to focus on Berkeley's use of the Cartesian doctrine of objective presence, which demands causal explanations of the content of ideas. This is particularly so with respect to Berkeley's arguments for immaterialism....