I am working on my first book being published and realized that 2 sections should be inside the book and not on the outside. This would be a section normally on the inside flaps of the dustcover about the author including the author's website name, and the information that might be on the inside dustcover flaps that mainly substantiate the information inside the book. This would leave the inside flaps of the dustcover for other types of either marketing information or something else that promotes the book or the author. Do you agree with this? If not, then what would you recommend?
Where you include your author bio and story blurb can depend on your book's format. Only hardcover books have a dustcover. If you are selling your book in paperback format, some of this information can go on the back cover. The rest can go on the inside pages or what is called "front matter" of the book. If you are selling your book in eBook format, all of this information will have to go on the inside pages. Here are some articles that you might find helpful, but the best resource is to look at different formats of books in your genre to see how other authors have addressed these elements.
https://www.authorlearningcenter.com/publishing/preparation/w/formatting/1960/front-matter---article
https://www.authorlearningcenter.com/marketing/branding/w/book-design/2146/a-breakdown-of-your-book-cover---article