We would like to receive a high resolution cover image that is 8 MB maximum. At a minimum, the longest side should not be less than 500 pixels. We accept .jpg or .png files only. Whatever the size, please make sure the files are optimized for the web.
We will be able to automatically resize the full size images for consistent widths and retain the aspect ratio for use throughout the site (for example, as thumbnail images), so you don’t need to resize your images before giving them to us. Please note that the recommended aspect ratio for images is 5:8.