In Trade for exceptional legal rights to promote the writer’s eBook, Amazon provides incentives to the creator, such as marketing equipment, like Kindle Unrestricted, And maybe higher royalty prices. Royalty premiums for self publishing with Amazon KDP range between 35% to 70% for ebooks, according to your book’s pricing. Royalties https://maplepublishers.com/blog/what-services-do-ebook-self-book-publishers-in-london-require/