Unique features like X-Ray, Whispersync, Print Replica, flashcards and more.A customizable reading experience with your choice of 10 fonts, font size, line-spacing, text alignment and more.Discover and download popular fiction, graphic novels and textbooks with high-res color images through direct purchase and Kindle Unlimited subscriptions.You may also read your book on your phone, tablet and Kindle e-Reader, and Amazon Whispersync will automatically sync your most recent page read, bookmarks, notes, and highlights, so you can pick up right where you left off. The Kindle app gives users the ability to read eBooks on a beautiful, easy-to-use interface.