The open-source EPUB e-book format is great for sharing books between different readers and making life easier on readers generally--but Amazon's Kindle, the big player, doesn't support it.

.PRC files are almost identical to the .AZW files that Amazon uses for Kindle books. This makes the Kindle capable of displaying .PRC files without having to convert them to another format. However, ...

The major advantage to PDF files is that you can distribute documents to a wide variety of platforms, including the Amazon Kindle. While the Kindle opens most PDFs with no difficulty, you can run into ...

iOS 13 and iPadOS 13 add long-awaited support for external drive access in the Files application. This means you can access files on a USB drive, SD card, or hard drive directly from your iPhone. One ...

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.

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. Kindles used to only ...