Amazon says its Kindle Direct DRM-free titles will be available as PDFs and EPUB files going forward.

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For a limited time, hundreds to thousands of e-books will be available to download for free on Amazon. Here's what to know about the bookish event. The phenomenon began nine years ago, launched by ...

I just downloaded and installed the PC app and am able to read all of my books in it. Or do you mean you're not able to back up / copy the books? Yes, I don't see how to do that within the app -- ...