Here is something you want to avoid when preparing your file for ePUB conversion.
If you are making your own ePub files or creating files for BookBaby to convert, get in the habit of leaving spaces out of your file names. So rather than “my really cool illustration.jpg,” use “myreallycoolillustration.jpg” or “my_really_cool_illustration.jpg.”
Spaces aren’t read the same way by all operating systems, and since your eBook is designed to be viewed on all different kinds of screens, it can affect how your book displays.
