This is a really great way to describe these different genres. As an author, I find it a real challenge to categorize my own work. This is a big help!
Knowing how to categorize your work is one of the most important skills a writer needs to know–especially while querying. Here’s an infographic to help. It’s not perfect and there are many places that writers won’t fit into and that doesn’t mean it’s not a marketable book. However, learning how to market yourself starts with knowing where your book stands and where it will sit on bookshelves.