I've been able to delete books through my Amazon account. I have a Kindle paperwhite. If you sign into your Amazon account, click on Your Account (under your name). Then click on "manage your content and devices". You just click in the box next to any book you want to delete and at the top, there is a delete button. Be very careful that you don't delete something you really want. It is permanent!
Last edited by Judith1005; 07-07-2016 at 11:33 AM.