Your checklist for the components of a nonfiction book

There is more to a nonfiction book than a catchy cover and table of contents… much more.

Wherever you are in the process of writing your book, if the chapters adequately convey your message, everything else you write must attract, inform, clarify, or sell.
Book covers

Front cover: If the book is a hardback, it will have a book jacket; if it is a soft cover, the cover will contain the same information as a jacket. The front cover contains the title, your name, an illustration, and perhaps an endorsement or quote from a favorable review.
Back cover: The back cover is your billboard. It should include a description of the main features of the book, a category, your photo and a brief bio, the publisher, an ISBN number, a Library of Congress number, a bar code, and the price. Much of this will already exist in your book proposal and can easily be converted to the appropriate language if the book is being translated.

Read more at; https://www.issacharprojects.com/your-checklist-for-the-components-of-a-nonfiction-book/