Page header running header or running headline, is a header that appears on each standard page. Running heads do not usually appear on display pages such as title pages, or on other front or back matter. Running heads in a book typically consist of the title on the left-hand (verso) page, and the chapter title on the right-hand (recto) page; or the chapter title on the verso and subsection title/subhead on the recto, aiding the reader's navigation by showing what content exists within the two-page spread at hand. A special case of the latter is in dictionaries, whose running heads are called
Page (paper) book as just "1 v." (one volume) when doing original cataloguing. In word processors and spreadsheets, the process of dividing a document into actual pages of paper is called pagination. Printing a large page on multiple small pages of paper is sometimes called tiling. In early computing, computer output typically consists of monospaced text neatly arranged in equal number of columns and rows on each printed page. Such pages are typically printed using line printers (or, in the case of personal computers, character (usually dot matrix) printers) that accepts a simple code such as ASCII, and the end of a