What does a book index include?

A book index typically includes an alphabetical list of topics, names, and other important information found within the book. It provides page numbers or other references to help readers quickly locate specific information within the book.

An index is a list of the principal subjects, terms, or names mentioned in a book, with references to the pages on which they occur. It is usually placed at the back of the book and is used to help the reader find information quickly and easily.