Nope! There’s a huge range. Some specialize in business content, others in memoirs or fiction. I learned that the hard way by hiring someone who mainly did blogs when I needed a novel ghostwriter.
Look for professional ghostwriting that match your genre. Ask for writing samples, and don’t be afraid to hop on a call before committing.
You want someone who gets your vision, your voice, and your type of content. Don’t settle just because they’re the cheapest.