I work in a small bookstore/coffee-shop in a smallish commuter town and there's one massive thing the author is missing out on: if you order from Amazon you don

I work in a small bookstore/coffee-shop in a smallish commuter town and there's one massive thing the author is missing out on: if you order from Amazon you don't get the @40% margin that forms the bulk of your profits. Having said that, I don't know anything about the Amazon affiliate fees programme - I imagine it'd be a very small cut?