Language as reason represents the unifying theme of this multifaceted reflection on Eddo Rigotti s scientific contribution offered by his students and colleagues on the occasion of his seventieth birthday. Spanning argumentation theory, linguistics, psychology, semiotics and communication sciences, the volume reflects Rigotti s generous personality and his trajectory of semiotician, philosopher, linguist and specialist in argumentation studies. Language as an instrument of communication with semiotic peculiarities is considered at different levels in which it manifests traces of reason...