The Kindle is an ebook reader designed and built by Amazon.com, which features a black-and-white e-Ink display and built-in Internet connectivity. This allows the Kindle to access Amazon.com's online bookstore where you can purchase ebooks and download them directly to the device. It's also compatible with a variety of other ebook formats, allowing you to transfer your existing library of ebooks to the Kindle from a computer.
Press the "Menu" button on the Kindle's keyboard and select "Settings." Take note of the Kindle's e-mail address, displayed on the "Settings" page.
Open the "Manage Your Kindle" page on your Amazon.com account. Click the "Add address" link in the "Your Kindle approved e-mail list" section and enter the email address you'll be sending the files from. Only e-mail addresses entered here can send ebook files to the Kindle. This is a security measure that prevents unsolicited e-mails from being sent to your device.
Create a new e-mail on your computer and attach the ebooks you want to transfer to the Kindle.
Send the email to the Kindle's e-mail address. The ebooks will be automatically pushed to your Kindle and will appear in its library after a few minutes.
Connect the Kindle to your computer using its USB cable. The computer will automatically detect the Kindle as a mass storage device.
Open the Kindle's allocated drive on the computer by clicking its link in "My Computer." Inside will be three folders called "Music," "Audible" and "Documents."
Drag and drop your ebook files from the computer into the Kindle's "documents" folder. Once file transfer is complete you can disconnect the Kindle. The ebooks will be accessible from the Kindle's library immediately.
You don't need to add a subject line or any text to the body of the email when sending ebooks to the Kindle.
All ebooks transferred to the Kindle from your computer must be in a file format recognised by the device, and they must not contain any form of copyright protection or encryption.