Essays in literature often refer to the title of the book referenced. A reference to the book title may occur only once, but it gives the reader of your essay information about the subject of your discussion.

MLA Style

In an MLA-formatted essay, the title of a book should appear in italics. In the case of a handwritten essay, the title of the book should be underlined. Novels, textbooks and anthologies should all be italicized, while portions of these books, including chapters, short stories and poems, are noted within quotes.

APA Style

In an essay formatted in APA style, the title of a book also appears in italics. Additionally, any words in the title that are four letters or longer should be capitalized. Italicization is also required for edited collections of short stories and essays, movies, television series, documentaries and albums.