"In these essays, Umberto Eco explores in depth such subjects as perception, the relationship between language and experience, and iconism that he only touched on in A Theory of Semiotics. Forgoing a formal, systematic treatment, Eco engages in a series of explorations based on common sense, from which flow an abundance of illustrative fables, often with animals as protagonists. Among the characters, a position of prominence is reserved for the platypus,...