Yes, KDP provides a built-in Cover Creator Tool that offers templates and customization options for authors to design their book covers. This tool is especially useful for those without advanced design skills, allowing them to upload images, choose layouts, and add text. However, for genres like mystery, where an engaging and genre-specific cover is crucial, authors in the UK often opt for professional design services. A well-crafted mystery book cover design uk, with intriguing visuals and typography, can significantly boost a book's appeal and sales, making professional design a worthwhile investment over basic templates.