Italic

Definition and stakes

Frederick W. Hamilton,  The Uses of Italic

“ Italic has, in general, four uses:
for emphasis. to set off a title, word, or passage from the context. for running titles, sub-heads, the headings of tables, and other like places where something different from the text letter seems needed for variety. for display purposes in commercial work.
One very important principle should always be observed in the use of italic for emphasis. Emphasis should always be used sparingly. Make the words do their work. Do not try to supplement poverty of thought and weakness of expression by italics, capitals, and other marks of emphasis.
”
Source: Gutenberg

Frederick W. Hamilton,  The Uses of Italic

“ To set an entire paragraph of quoted matter in a foreign language in italic, or even to use italic too freely for phrases, practically nullifies the value of it as a display letter for the sub-headings or for any other part of the book in which distinction is really needed. Quotation marks, indention, smaller type, or any of the marks which distinguish quoted matter are sufficient.
III. At one time it was quite customary to set all quotations, whether in English or a foreign language, prose or verse, in italics, but that fashion is now happily obsolete.
”
Source: Gutenberg

William Livingston Klein,  Why We Punctuate; or, Reason Versus Rule in the Use of Marks

“ The titles of books, plays, songs, poems, and the like, when referred to in one’s text, are put in quotation-marks by some writers and in italics by others. The former seems to be the more common usage. Mr. De Vinne says “italic is preferred by bookish men.” Most writers make an exception to the above rule in the case of the titles of well-known books. ”
Source: Gutenberg

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