The Table of Contents tells you what the name of each chapter is and what page it begins on. It is found at the beginning of a book.
A glossary is a list of important words used in a book, that are in abc order with their definition. (Mini-Dictionary) You can find it in the back of the book.
The Index tells you the page number where you can find certain words from the book. It is located in the back of the book.
Thank you to Carolyn Steward for use of the standards.