A table of contents is an important part of any long document. If your document has sections, the table of contents quickly shows readers the overall structure of the document. It is one of the first things that any reader will look at.
A table of contents will also help you as you write your document. It gives you a way to see the sections in your writing so you can structure your document well. I will cover some other ways in future postings.
These two short videos have good instructions about how to insert table of contents in a Word document. The process begins with using the built in heading styles. Using heading styles helps you in a number of ways, so you should do this right from the start when writing.
Creating a Table of Contents in a Word Document – Part 1 by titantechtraining
Creating a Table of Contents in a Word Document – Part 2 by titantechtraining