Harold Bloom's critical work involves a systematic attempt to unify rhetoric and psychology into a theory which provides an account of the nature, aetiology and structuring principles of influence in Post-Renaissance poetry. The thesis examines the development and context of those theories, seeing them partly as an initially mythologised response to structuralist thought which is modified and meliorated in later work. The theories themselves are examined, including the argument for the unity of psychology and rhetoric, the historical account Bloom provides, and his arguments on the nature of influence-relations. It is argued that the attempt to link psychology and textual material results in a distorted account of these various t...