Strange as it may seem, Cervantes's novel Don Quixote, Marc Forster's film Stranger than Fiction, Shakespeare's play A Midsummer Night's Dream, Pere Borrell del Caso's painting "Escaping Criticism" reproduced on the cover of the present volume and Mozart's sextet "A Musical Joke" all share one common feature: they include a meta-dimension. Metaization - the movement from a first cognitive, referential or communicative level to a higher one on which first-level phenomena self-reflexively become objects of reflection, reference and communication in their own right - is in fact a common feature...