Whenever you’re content with the glance within your eBook, you may publish it. This does not publish your eBook to Kindle Immediate Publishing, but produces the .kpf file and you will upload that file to Kindle Direct Publishing, instead of your Phrase file. Be aware: Open your text file in https://maplepublishers.com/blog/what-formats-you-must-think-about-while-self-publishing-a-book/