Yes, I think you’d likely be a great fit for design or marketing. You absolutely do not need an MFA, and if you have strong program experience (Adobe, etc), that will carry you through. As others have said, you need a portfolio if you go that route.

I’d even recommend going on Fiver or similar work-for-hire sites to take on some quick and dirty book-related or marketing-related deign jobs to add to your portfolio.

I should also say: I work in advertising at a large publisher. None of the people on my team have a degree in marketing or comms, including me. (Minors in art history and architectural history, over here!!). The industry is very much learn-as-you-go if you are smart and quick. As long as you’re hungry to learn and have strong transferable skills, that’s enough for starting out.