The postal series explores some of the verses of the Divine Comedy, which have become immortal over the centuries (the love between Paolo and Francesca, the exhortation of Ulysses and the exit from Hell) using typographical compositions with lettering specially made with calligraphy styles used at the time of the Supreme Poet. The gold colour, used for the decorations, embellishes the artwork that recall the capital letters of the manuscripts, while the other colours are linked to the message of the verses: blue for the starry sky, red for love and green for knowledge.