The back section of a book is referred to as the "backmatter." It typically includes any supplemental material that comes after the main content of the book, such as:
- An afterword or epilogue (contains additional material from the author).
- A glossary (a list of terms used in the book and their definitions).
- A bibliography (a list of sources used for research).
- An index (a list of people and topics that are referred to in the book).
The backmatter can also include additional information about the author, acknowledgments and credits, publishers notes and contact information, reviews, copyright information, and more.
Backmatter can be used to reiterate the main points of the book or provide readers with additional information that enhances their overall understanding of the book. It also helps readers find key points in the book quickly and easily without having to search through the entire text.
For more information on backmatter and its importance, you can find an article here: https://www.zigguratpress.com/happy-client-authors/understanding-back-section-book/