A document component that provides a brief overview of its contents is known as what?

A Table of Contents serves as a road map for the reader, offering a succinct overview of the document's structure and the topics contained within it. This component lists the titles of sections, chapters, or headings along with their corresponding page numbers, allowing readers to quickly locate specific information. By providing an organized outline, the Table of Contents enhances the usability of the document, particularly in longer texts where navigating through various sections can be challenging.

In contrast, an Appendix typically contains supplementary material that is referred to within the main text, a Glossary provides definitions of specialized terms used in the document, and a Definition usually pertains to a specific term or concept rather than offering an overview of the document’s overall contents. Each of these other options serves a different purpose and does not fulfill the role of summarizing the structure and content of the document like the Table of Contents does.