What content is typically included in a table of contents?

A table of contents serves as a roadmap for a document, helping readers navigate through its various sections with ease. It typically includes chapters and headings, providing a structured outline of the content. This feature allows readers to quickly locate specific topics or sections within the document, making it easier to find relevant information without having to read through the entire text.

In contrast, a summary of the document would give an overview of its contents but does not serve the navigational purpose that a table of contents does. An index of terms is usually a separate section found at the end of a document, helping readers find specific keywords or phrases, while an overview of images might describe visual content but is not standard within a table of contents. Therefore, chapters and headings are integral to the functional aspect of a table of contents.