Your book cover can make or break your book. This is an objective quality measure you can use to determine if your book cover will look good on non-color eReaders.
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Book Cover Quality
This cover checker is primarily focused on contrast and blurriness. We are not trying to judge the subjective qualities of the book cover as we believe that the author and publisher can only know what is best from a content perspective. However, once they feel good about that it's good to think about color contrast as many eReaders do not have color screens. If you see a contrast and blurriness score of POOR it means you should consider changing your cover design. If you receive either a FAIR or GOOD score then you are probably okay at least from a contrast and blurriness perspective. We also identify the dominant color of your book cover image which may be useful for authors to know as well and might even surprise them some.'
This cover checker will attempt to find things in your book cover that may be flagged by various providers, distributors, or platforms. There may be very good reasons why you chose to have content that may be flagged for offensive content, nudity, or weapons/drugs. Please keep in mind that we are just analyzing what we see in the image. If you see a content rating score of POOR it means you should consider changing your cover design. If you receive either a FAIR or GOOD score then you are probably okay at least from an automated content rating perspective.'