Line length in the context of "Readability"

Typography is the art and technique of arranging type to make written language legible, readable and appealing when displayed. The arrangement of type involves selecting typefaces, point sizes, line lengths, line spacing, letter spacing, and spaces between pairs of letters. The term typography is also applied to the style, arrangement, and appearance of the letters, numbers, and symbols created by the process. Type design is a closely related craft, sometimes considered part of typography; most typographers do not design typefaces, and some type designers do not consider themselves typographers. Typography also may be used as an ornamental and decorative device, unrelated to the communication of information.

Typography is also the work of graphic designers, art directors, manga artists, comic book artists, and, now, anyone who arranges words, letters, numbers, and symbols for publication, display, or distribution, from clerical workers and newsletter writers to anyone self-publishing materials. Until the Digital Age, typography was a specialized occupation. Personal computers opened up typography to new generations of previously unrelated designers and lay users. As the capability to create typography has become ubiquitous, the application of principles and best practices developed over generations of skilled workers and professionals has diminished.

Leaves of Grass is a poetry collection by American poet Walt Whitman. After self-publishing it in 1855, he spent most of his professional life writing, revising, and expanding the collection until his death in 1892. Either six or nine separate editions of the book were produced, depending on how one defines a new edition. The continual modifications to Leaves of Grass resulted in vastly different copies of it circulating in Whitman's lifetime. The first edition was a slim tract of twelve poems, and the last was a compilation of over 400 poems.

The book represents a celebration of Whitman's philosophy of life and humanity in which he praises nature and the individual's role in it. He catalogues the expansiveness of American democracy. Rather than dwell on religious or spiritual themes, he focuses primarily on the body and the material world. With very few exceptions, Whitman's poems do not rhyme or follow conventional rules for meter and line length.

In typography and computing, characters per line (CPL) or terminal width refers to the maximal number of monospaced characters that may appear on a single line. It is similar to line length in typesetting.