In Exchange for exceptional rights to market the creator’s eBook, Amazon offers incentives on the writer, for example promotional applications, like Kindle Unlimited, And maybe higher royalty rates. As stated earlier mentioned, you may pick which Amazon types you would like for afterwards, just after your book has become published. https://maplepublishers.com/blog/how-to-start-your-career-as-a-fiction-writer-by-self-publishing-a-book/