This book presents a systematic interpretation of Charles S. Peirce's work based on a Kantian understanding of his teleological account of thought and inquiry. Departing from readings that contrast Peirce's treatment of purpose, end, and teleology with his early studies of Kant, Gabriele Gava instead argues that focusing on Peirce's purposefulness as a necessary regulative (in the Kantian sense) condition for inquiry and semiotic processes allows for a transcendental interpretation of Peirce's philosophical project. The author advances this interpretation through presenting original views on...