The glossary is found in the back matter of the book. ... If a book includes rare, unfamiliar, specialized, or made up words or terms, the glossary serves as a dictionary for the reader to reference throughout their reading of the book. (Note: this section should only contain definitions for specific terms in the book.

Where are glossaries in books?

The glossary is often found at the end of a book or article and is usually in alphabetical order. A glossary can also come at the end of a chapter or even in footnotes.

Should my book have a glossary?

What you're writing should thus stand on its own right, no glossary needed. If you're introducing some made-up or very rare terms, they should be understood from context, or described / explained within the text - whatever better suits each particular case.