Topic summary
Italicised

Extracted from the Wikipedia article Italic type.
Italics within italics
If something within a run of italics needs to be italicised itself, the type is normally switched back to non-italicized (roman) type: "I think The Scarlet Letter had a chapter about that, thought Mary." In this example, the title ("The Scarlet Letter") is within an italicised thought process and therefore this title is non-italicised. It is followed by the main narrative that is outside both. It is also non-italicised and therefore not obviously separated from the former. The reader must find additional criteria to distinguish between these. Here, apart from using the attribute of italic–non-italic styles, the title also employs the attribute of capitalization. in which book titles are italicised differ on how to deal with a book title within a book title; for example, MLA style specifies a switch back to roman type, whereas The Chicago Manual of Style (14.94) specifies the use of quotation marks (A Key to Whitehead's "Process and Reality"). An alternative option is to switch to an 'upright italic' style if the typeface used has one; this is discussed below.