I good photo of a Guinea Pig on the front cover please.
For the Audible book cover:
Include author name and title
2400 x 2400 (H x W) minimum
File size should be less than 8MB
RGB (Not CMYK)
JPG, PNG or TIF Format
For the Kindle book cover.
The ideal size of your eBook cover art is a height/width ratio of 1.6:1. This means that for every 1,000 pixels in width, the image should be 1,600 pixels in height. To ensure the best quality for your image, particularly on high definition devices, the height of the image should be at least 2,500 pixels. Ideal dimensions for cover files are 2,560 x 1,600 pixels.
Note: The minimum image size allowed is 1,000 x 625 pixels. The maximum image size allowed is 10,000 x 10,000 pixels
Your cover image must be less than 50MB. Try to avoid compressing your files. This can affect the quality of your cover when displayed on reading devices. We recommend saving your file with a minimum of 72 dots per inch (DPI).