How should the table of contents heading be styled?

The table of contents heading should be styled in all caps to ensure it is easily distinguishable and visible to readers. This stylistic choice enhances clarity and emphasizes the importance of the table of contents as a navigational tool within the document. Using all caps is a conventional approach that signals to the reader that this section is distinct and serves a specific purpose, which is to outline the organization of the material that follows.

Styling it in italics or normal casing may not provide the same level of visibility or emphasis. While bolding and underlining might also attract attention, all caps is a common standard specifically associated with headings in lists or contents sections, allowing for quick reference and improved readability.