Avesta people. The term "Avesta" is from the 9th/10th-century works of Zoroastrian tradition in which the word appears as Zoroastrian Middle Persian "abestāg", Book Pahlavi "ʾp(y)stʾkʼ". In that context, "abestāg" texts are portrayed as received knowledge, and are distinguished from the exegetical commentaries (the "zand") thereof. The literal meaning of the word "abestāg" is uncertain; it is generally acknowledged to be a learned borrowing from Avestan, but none of the suggested etymologies have been universally accepted. The widely repeated derivation from *"upa-stavaka" is from Christian Bartholomae ("Altiranisches Wörterbuch", 1904), who interpreted "abestāg" as a contraction of a hypothetical reconstructed Old Iranian
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