Note 18 — Chapter VI · MANUSCRIPT BOOKS16 MS. Books: Tools & Materials — Methods & Proportions — The Size & Shape of the Book — The Widths of the Margins — The Size of the Writing, &c. — Ruling — MS. Books: General Remarks.
Reading edition
The two, four, eight (or more) pages are printed on both sides of the sheet before it is folded. Two or more sheets are generally folded and put together to form a folio “section.”