Just a note on the Contents Page and Back Cover features.
You need to have a How-To, Three-Ways or Five-Ways feature in the book if you would like to go on the Contents Page. The Contents Page shows the contents of the book and where readers can find a project or a how-to.
The Back Cover similarly showcases something significant that can be found in the book, for the reader to do.
Having a photo of your product on the 'End of Chapter products page' is not enough to allow you to be featured on the Contents or Back Cover.
Hope this makes sense! Please contact us if you have any questions.