Avesta as "Fragments Tahmuras"; and the "Hadokht Nask" "volume of the scriptures" with two fragments of eschatological significance. Only texts preserved in the Avestan language count as scripture and are part of the Avesta. Several other secondary works are nonetheless crucial to Zoroastrian theology and scholarship. The most notable among the Middle Persian texts are the "Dēnkard" ("Acts of Religion"), dating from the ninth century; the "Bundahishn" ("Primordial Creation"), finished in the eleventh or twelfth century, but containing older material; the "Mainog-i-Khirad" ("Spirit of Wisdom"), a religious conference on questions of faith; and the "Book of Arda Viraf", which is especially
The Book of the Book the "New York Review of Books", stating "Ignorance, I will admit, is no crime, and I am sure that Dr. Elwell-Sutton does not claim to be a literary man. But motivation has its mysteries." A review in Studies in Comparative Religion stated "The Book of the Book, which purports to be an object lesson in the problem of the container and the content, consists of some fifteen pages of print bound together with over 250 blank pages". The Book of the Book The Book of the Book is a book by Idries Shah. The majority of the book's 200 pages