Kindle devices appeal to many people. When everything works, they're great. But Amazon is becoming more and more finicky, both in terms of supported formats and the freedom to manage your own books.

Do you love to read online? Which format is your favorite? For me, it’s the EPUB format, which is one of the most widely supported formats for eBook readers. But if you love to read it on a browser ...

While you don't need to worry about file formats with Kindle books purchased from Amazon, you might have books from other ...