Tasnif Style Guide — Page 37
Chapter 3 FOLIOS AND RUNNING HEADS General Information The term folio refers to the page number as a specific designed element on a typeset page. The folio (set in lower-case Roman numerals in the Front Matter and in Arabic numerals for the Main Text and End Matter of the book) usually appears at the outer top edges of the spread, or centred at the foot. All pages are counted in the pagination sequence, but the folio is not shown on some pages, including some in the Front Matter, turned pages (that is, those on which material is printed in landscape format), those taken up entirely by illustrations, figures, or tables, and blank pages. On a chapter opening page, the folio may or may not appear in the margin. Running headlines are also called headlines, running titles, pageheads, or simply running heads. They are single lines used to top the pages of the printed book to help readers navigate through the book.