You could try reaching out to previous attendees of Comic Con and asking if they know of any ways to get coupon codes. Sometimes they might have insider tips or know of hidden offers. Another option is to look for online forums or communities dedicated to Comic Con where people share such information.
Well, the validity of such a coupon code can vary. It could be for a limited time like a week or a month. Regarding usage, you might need to meet certain criteria, like a minimum purchase amount. Sometimes, it might only be applicable to specific products or services. So, always read the fine print!
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.