In academic writing, it is important to format your paper correctly. This includes citing all sources used and giving a book title in essay the proper format. The general rule of thumb is that any book title in essay should be italicized or underlined. This applies to both the titles of books and journals. An example of a book title in essay format would be as follows:

The Catcher in the Rye by J.D. Salinger is a classic coming of age story about the struggles of teenage angst.

When citing this book title in essay, it should be italicized or underlined. It is important to note that some style guides (such as the APA and MLA styles) require the titles of books to be italicized, while other style guides (such as the Chicago Manual of Style) allow for either italicizing or underlining.

When citing a book title in essay, it is also important to include the author's name and the year of publication. For example, in an MLA-style paper, the book title would be written as follows: Salinger, J. D. (1951). The Catcher in the Rye. New York: Little, Brown and Company.

It is essential to remember that when citing book titles in essay, it is important to follow the format of the style guide being used. This will ensure proper citation of sources and uniformity throughout the paper. Additionally, it is important to remember to use italics or underlining for any book titles included in an essay. Doing so will ensure that the title is properly formatted and cited.