The Introduction offers a rationale for the first general analysis for a number of years of Samuel Johnson’s literary criticism. It sets forth the distinctive emphasis of the new volume and justifies its focus on Johnson’s “criteria of the heart.” This formulation points to the emotional foundation for many of Johnson’s literary judgments. How Johnson’s emotional demands count as criteria is then explained and the connection between the chapters is spelled out. Each explores Johnson’s critical artistry or aspects of his thought – the application of philosophical rigor to statements of critical opinion. The Introduction stresses the poetical character of Johnson’s critical prose and looks forward to the prose of the Lives of the Poets; a passage from this work has served as the basis for David Ferry’s poetical recreation of Johnson. The introductory excursus suggests that categories commonly employed to explain Johnson’s criticism in historical terms will always strike the wrong note. They make unwarranted assumptions about the nature and progress of criticism and disfigure our sense of Johnson’s place within critical history.