If you are working on a book designing project, I recommend you this book mockup. It shows not one but two hardcover books. This top view gives you the opportunity to observe both back and front covers.
You can add your prepared graphics to both of these books. Insert your illustrations on texts on both covers, and remember that you can change the color of each book separately. Get help from the available smart object layer to create more flawless results. Download this file and enjoy.
