I love using bookmarks in long documents. If you’re working on a long document and need to return to specific locations in the document, Microsoft Word’s Bookmark tool accomplishes that for you. Rather than having to scroll through pages and pages of your document, you can quickly return to a bookmarked location.
I use bookmarks in conjunction with a Table of Contents to provide a round-trip experience. That way, when a reader, or even me, the writer, need to read a specific section, they can click on the hyperlink provided in the Table of Contents. Then, once they finish reading that section, they can click on a bookmark and return to the Table of Contents.
Bookmark names have to start with a letter, not a number; however, they can contain numbers – just no spaces. To name bookmarks, I usually include an underscore, for example, Section_1. . If you intend to insert multiple bookmarks, make sure the name is descriptive enough that it will be easily recognizable.