A joint collaboration of the University of Bologna (Francesco Bellucci) and the Charles University, Prague (Martin Macháček), the conference investigates the connections between Peirce's semiotics and his metaphysics. Contributions of Maria Regina Brioschi (University of Milan), Michal Karľa (Charles University, Prague), Martin Macháček (Charles University, Prague), Karolína Šedivcová (Charles University, Prague), Giacomo Guidetti (University of Bologna), Martin Švantner (Charles University, Prague).