LANGUAGES would become pathways through space and time. While nations would be held together by their new vernaculars, lone readers could seek remote continents and voyage into the faraway past. From Cicero to Gutenberg, the book, the vehicle of language magic, would be transformed out of all recognition. The modern technical definition of a book, accepted by librarians and by UNESCO for statistical purposes, suggests how much the “book” has changed. A book, they say, is a “non-periodical printed publication of at least 49 pages excluding covers.” But for most of history, books did not even
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