I downloaded all my purchased books, around 500, before Amazon terminated the possibility. Even though it says "purchase" on their site in reality they are now selling you a license, and only allowing books to be read on Kindles.
Enough of this.
Using Calibre I created a library that can be read on any ebook reader, and purchased a Kobo Clara colour.
Now I'm as happy as a pig in muck. Oh and Amazon, I won't be buying books from you any more. There's more than enough alternative sources.
** I love Glynn Stewarts science fiction stories, but most of his work is published on Amazon. The solution was simple, I subscribed to Glynn's Patreon account and receive advanced copies of his books that I can read on any reader.
https://www.patreon.com/glynnstewart
That said, I've read nearly all of Michael Connelly's books but some of his ebooks on Google or Kobo are country restricted. For example I' unable to purchase the full series of the Jack Macevoy series because I'm in France. WTF? All this does is tell me to get a book from another author. Get a clue guys!