Yes, Xlibris Self-Publication allows authors to use their own cover designs for their books. This can be an excellent way for authors to showcase their personal style and vision for their work. However, it is important to ensure that the cover design meets Xlibris's specifications regarding dimensions, resolution, and file format. Authors who wish to utilize a custom cover should review the specific requirements outlined by Xlibris to ensure a smooth submission process. Typically, these requirements can be found on the Xlibris website. Additionally, if authors decide to work with Xlibris's design team for a custom cover, they also have that option. Ultimately, the choice between using one's own design or utilizing Xlibris's services is entirely up to the author.