If you already have an Amazon account, You can utilize that information to log in into KDP, or you may make a new account in order to hold matters different. Royalty charges for self publishing with Amazon KDP range from 35% to 70% for ebooks, based on your book’s pricing. https://maplepublishers.com/blog/5-considerations-when-hiring-a-book-illustration-agency-or-a-professional/