Go to the official Amazon "Download Kindle Apps" page .
Instantly look up words while reading.
Navigate quickly with shortcuts like Page Down for the next page, CTRL + F to search, and F11 for full-screen mode. Install or Update the Kindle App for Desktop - Amazon.com Pc Kindle Reader Download
Click the Download for PC & Mac button.
Change font sizes, background colors (white, black, or sepia), margin width, and brightness to suit your preferences. Go to the official Amazon "Download Kindle Apps" page