
If you upload a book to Google Play Books in EPUB format and one of these things happens:
The cover isn't showing up
The cover looks like the above image
The book doesn't open/gives you a 404 error
Here are some things to try:
First of all, wait! Google has to extract the cover from the file, and for some reason it can take a long time for it to show up. I would recommend waiting at least an hour, if not longer. Yes, this might...