"The White" is about 3 individuals that die on exactly the same day at the same time. They are taken to a 'earth' in which they are surrounded by nothing but white. The conventional dimensions for the book cover design may differ according to the format and style. Even so, https://maplepublishers.com/blog/how-to-start-your-career-as-a-self-publishing-author-with-maple-publishing/