Kaon decays in the standard model

This review article surveys the theoretical structure, experimental status, and physics implications of the large variety of neutral and charged kaon decay modes. These have been important for establishing the fundamental structure of the electroweak interactions, determining elements of the Cabibbo-Kobayashi-Maskawa mixing matrix, discovering and studying CP violation, probing the flavor symmetries of the strong interactions at low energy and developing chiral perturbation theory, and searching for new physics effects in rare decay modes.