I'm not sure which ISBN would be the best for your novel without more information. There are different types of ISBNs, such as those for print books and e - books. If your novel is mainly targeted at a digital audience, an ISBN for the e - book format might be crucial. You could also look into vanity presses or self - publishing platforms that offer ISBN assignment as part of their services. They might be able to guide you on choosing the best ISBN based on your specific needs.
Some comics have ISBN numbers, especially those published through traditional publishing houses. But not all indie or self-published comics might have them. It depends on how they're produced and distributed.
You can also contact the author or illustrator of the graphic novel if possible. They may be able to tell you the ISBN or direct you to where you can find it. However, this might not always be easy as they may be very busy. But if you are really having trouble finding the ISBN, it could be a last - ditch effort.
Yes, you can get an ISBN for Vella stories in some cases. It depends on various factors such as the publishing platform and your specific circumstances.
In many cases, short stories can have ISBN numbers, especially if they are published independently or as part of a collection by a recognized publisher.