Table of Contents are automatically genrated using headings in book chapters. Sometimes you may encounter a book that has only one heading and other times a book with too many headings. These are caused by the incorrect use of headings in the original HTML pages generated by our Gutenberg volunteers.

When you see too many headings in the Table of Contents, and they point to pages contain a heading only, you can scroll down to the second half of the Table of Contents and those headings should point to chapters with contents.