The Liber Linteus Zagrabiensis (Latin for "Linen Book of Zagreb", also rarely known as Liber Agramensis, "Book of Agram") is the longest Etruscan text and the only extant linen book, dated to the 3rd century BCE. (The second longest, Tabula Capuana, also seems to be a ritual calendar.) Much of it is untranslated because of the lack of knowledge about the Etruscan language, though the words and phrases which can be understood indicate that the text is most likely a ritual calendar. Miles Beckwith points out with regard to this text that "in the last thirty or forty years, our understanding of Etruscan has increased substantially," and Bouke van der Meer has published a word-by-word analysis of the entire text. J.Krall's 1892 transcription of the entire text can be found at: https://archive.