If you purchased a book or article on your Kindle, you can automatically receive the most updated version of that title…if there is one.
All you need to do is log in to the manage your Kindle section of your Amazon account, scroll down to the Your orders section of the page, choose the content of interest and re-send it to you Kindle.
You need to make sure that your wireless option is turn on for immediate delivery.
If you are not in a wireless covered area, then you would download the content to your computer, as usual, then use the USB cable to transfer to your Kindle.
That’s it! If there are any updates, you got it!
Tip of the day: If you want your Kindle battery charge to last longer, turn on your wireless only when you are downloading content, otherwise keep it off.