“Regardless of how you organize the content, the larger point is this: giving users a table of contents does much more than simply provide users with a means of navigating the content. The table of contents expresses the hierarchical relationships of your content, and by so doing gives users a sense of your content’s overall story and structure. Even if users can’t find the answer to their question by navigating the table of contents, they can find other meaning in browsing and perusing the structure of your content.”

(Tom Johnson ~ I’d Rather Be Writing)