The first section of the volume consists of essays that, by appealing to different considerations which range from the normative to the phenomenological, offer an assessment of the animalist conception of the self. The second section presents an examination as well as a defence of the new epistemic paradigm, largely associated with recent work by Christopher Peacocke, according to which knowledge of our own mental states and actions should be based on an awareness of them and of our attempts to bring them about. The last section explores a range of different perspectives--from neo-expressivism to constitutivism--in order to assess the view that self-knowledge is more robust than any other form of knowledge. While the contributors differ in their specific philosophical positions, they all share the view that careful philosophical analysis is needed before scientific research can be fruitfully brought to bear on the issues at hand. These thought-provoking essays provide such an analysis and greatly deepen our understanding of these central aspects of our mentality.