Proceedings of a conference held June 26-30, 2007 at Opole University, Poland. -/- This volume explores the three normative sciences that Peirce distinguished (aesthetics, ethics, and logic) and their relation to phenomenology and metaphysics. The essays approach this topic from a variety of angles, ranging from questions concerning the normativity of logic to an application of Peirce’s semiotics to John Coltrane’s “A Love Supreme.”.