In 1949 Munari started designing his “libri illeggibili” (unreadable books), which abandon textual communication in behalf of aesthetic function only. Paper is used not to support text, but to communicate a message through the format, the colour, the cuts and their succession. Traditional book elements, like the colophon and the title-page, are kept off, and it reads more like a melody, with different tones in the sequence of the pages.