3 Easy Ways to Load Non-Amazon Books on Your Kindle Fire

Your Kindle Fire works great as an Amazon shopping device, but you need not be limited to only books you buy through Amazon. If you buy legal copies of books from other sellers, you can usually transfer them to your Kindle — single ebooks, such as books you legally purchase and download from Tor or other bookstores that offer non-DRM protected files.

Amazon Kindle natively reads .mobi files. If you have a book in ePub format, you can still read it, but you'll either need to convert it using a program like Calibre or install a separate reading app like Aldiko on your Fire. 

Supported file types for Kindle books include:

• Kindle Format 8: Amazon's version of the EPUB3 standard
• MOBI
• AZW: A copy-protected version of MOBI
• PRC

Beyond books, your Fire supports non-book documents that you can upload to your account and read as if it were a book. Supported files for Kindle Fire personal documents include:

• TXT
• PDF
• DOC
• DOCX

You can open and read PDF books, but you cannot do so under the Books tab on your Kindle or your Kindle app on your mobile device. Those are under Docs. That's why your Kindle Fire user guide is located in Docs instead of under Books. 

You can email your Kindle files as attachments. The files must be in one of the supported formats, and they'll be added to the Docs section of your Kindle. To set this feature up, log into Amazon.com and then go to Manage Your Content and Devices: Personal Document Settings.

You'll need to set up the authorized email account and address. Generally, it will be something like "your_name_here@kindle.com." Only emails coming from approved email addresses will work.

If you use a micro-USB cable and connect it to your computer, you can transfer files to and from your Kindle as if it were an external hard drive. Place any .mobi files in the Books folder, and place .pdf and other formats in the Documents folder. After you've added your files, you may need to restart the Kindle to get it to recognize your new books.

Use Dropbox to transfer files.