In this monumental work the artist put into play all his mastery as a great visual narrator, united with a visionary force which in some panels is translated into pure painting, all color. "I took on The Divine Comedy, -Sassu writes, - to give form and figure to Dante's most secret voice, in symbiosis with my painting, with reality and dreams."

In 1974 he also illustrated Ariosto's Orlando Furioso in 15 colored engravings, with an introduction by Vittorio Sereni; the title of the portfolio is Fantasie d'amore e di guerra dell'Orlando furioso. Sassu utilizes yet another technique, watercolor, to narrate in 58 panels the story of I Promessi sposi, by Alessandor Manzoni, collected in a book printed in 1892 in 1,999 copies.

Mention should also be made of the etching and six lithographs printed in 100 copies for Apocalisse, a volume published also in 1982; the lithographs contained in the portfolio Quattro studi per il Decamerone, of 1983; and seven color lithographs on the theme of Don Quixote, of 1985, printed in 125 copies. Finally, 1989 saw the publication of Omero: gli Inni, in which Homer's text is accompanied by 5 lithographs, with a press run of 155 copies, and in 1991 appeared Sophocles L'Edipo Re, six watercolors in 90 copies.