Don’t stop with the front cover of the printed book. Remember that there will be a spine and back cover to design too. It’s also not very widely known that the image resolution demanded for print covers is higher than the standard screen resolution of computers. In practical terms this means that your images for print need to be much bigger. Ideally for the cover of a novel an image should be at least 1,700 pixels wide. If you’re planning to have an image that wraps around the whole cover, then the images will have to be even bigger. You can always reduce size and quality, but if you start from a small size then increasing it is impossible without further lowering quality. Stretched or blurry images quickly undermine a professionally designed cover!