Kindle uses this information to help you discover books you might like in the future, but it also downloads some samples for you to try. After prompting you to log in to your Amazon account, Kindle will ask you to select some genres of books you like to read and rate a handful of titles. If you're new to e-reading, I highly suggest downloading Kindle and giving it a try. Plus, Kindle has a very robust library management system that makes it super easy to find pages in any book with only a couple taps of the screen. Kindle can do just about anything you want from an e-reader, including changing the font, background color, highlighting text, making annotations, and more. Although Amazon is now a huge online store that sells almost everything imaginable, back in its early days, it started as an online bookstore, and the Kindle app provides access to Amazon's massive catalog of books.