Originally Posted by HarryT
Because you don't have the same number of folders at the "documents" level - the folders you have at that level are for authors, which you probably have significantly fewer of than you have books.
But I have to ask - why the hell do you care? You don't have a Kindle, and are a noted "Kindle hater".
This thread pertains to more then just Kindle users. Coming up with the cleanest way to delete eBooks from our readers is not just a Kindle thing. It's pertains to Amazon, B&N, Kobo, Sony, Onyx, Bookeen, and any other Reader that Calibre can manage.