Today, Mytour will walk you through the process of selecting and transferring books, as well as other content, from one Kindle device to another using your computer's internet browser.
Steps

Log in to the same Amazon account on both Kindles. You need to use the same account on both devices to transfer books.

Visit Amazon using your computer's internet browser. Type www.amazon.com into the address bar and press ↵ Enter or ⏎ Return.
- If you’re not automatically logged in, click the yellow Sign in button, then enter your username and password.

Hover your mouse over your name in the menu bar. This button is located next to the search bar at the top-right corner of the screen. The account menu will pop up.

Click on Your Content and Devices in the menu. A new page will open displaying a full list of your books and other content.

Select the book you wish to transfer. Click the checkbox next to the content you want to move to another Kindle device.

Click the yellow Deliver button. This button is located at the top of the list of content and books. A new window will pop up.

Click on the Devices Selected tab. A dropdown menu will appear showing all your Amazon devices.

Select the Kindle device you want to transfer the file to. Click on the name of the Kindle device where you want to send the file. This device will be selected as the destination for the transfer.

Click the Deliver button at the bottom right of the pop-up window. All the books you selected will be transferred to your target Kindle device.
