This page is labelled as Resources, but you can use it for anything you want. For example, a business owner who has a book would use this page to promote that book.

Someone who has information products can list them here.

You might also consider having a Resources page where you tell visitors about useful resources, then add a page where you sell your book and/or information products. This is, of course, in addition to dedicated pages for selling each book or information product.