I will sustain in this article that Peirce can be seen as the last great representative of that inconspicuous but persistent tradition that, from the thirteenth to the seventeenth century, spent its energies on discovering a universal language. His project of Existential Graphs is in fact grounded on the isomorphism among a Sheet of Assertion, in which Graphs-signs are drawn, a Mind, with its thoughts-signs, and the Universe, with its facts-signs. In the same sense, Leibniz worked on his Characteristica Universalis, seen as a general Encyclopedia or alphabet of human thoughts, and a pictum mundi amphitheatrum.
The official journal of the International Association for Semiotic Studies, founded in 1969 as one of the first scholarly journals in the field, Semiotica features articles reporting results of research in all branches of semiotic studies, in-depth reviews of selected current literature in the field, and occasional guest editorials and reports. The journal also publishes occasional Special Issues devoted to topics of particular interest.