Creating 3D Digital Books is an amazing tool authors can learn to use to help promote their book when they may not have a physical copy of their book yet. Using digital books are also perfect for promotional graphics, which I'll be uploading a video tutorial on shortly.
The video will walk you through how to create a 3D version of your book. For this you will need your book cover as well as a png or jpg of your spine. These can be made in Canva or you can get in touch with your cover designer to provide these files for you. Once you've watched the video and you're ready to create a digital book for yourself, click the link: https://diybookcovers.com/3Dmockups/