The paper deals with the problem of qualia in the context of Umberto Eco‘s semiotics. I propose that Eco started to focus specifically on the problem of qualia mostly in his later period when he turned from the idea of almost universal theory of semiotics (e.g., in Theory of Semiotics) to cognitive realism (in Kant and the Platypus) with the help of more precise reinterpretation of Peirce’s...