One of my favorite use cases for ChatGPT image creation is asking it to create a Kindle cover for public domain books.
I get the ebook from Project Gutenberg. Then I upload and format the ePub in Calibre.
Instead of looking at a “doc” cover format that’s not legible when I scroll, I get a beautiful custom cover.
All I do is drag the file into ChatGPT or name the title and author and I get the cover in seconds.
Used it today for a late-1800 history of Oviedo