In Trade for exceptional legal rights to promote the creator’s eBook, Amazon gives incentives on the author, which include marketing tools, like Kindle Unrestricted, and possibly better royalty premiums. Royalty fees for self publishing with Amazon KDP range from 35% to 70% for ebooks, determined by your book’s pricing. Royalties https://maplepublishers.com/blog/what-services-do-ebook-self-book-publishers-in-london-require/