Antonia M.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Sep 25, 2026.

An American author based in New Zealand, I ghostwrite memoir and narrative nonfiction for international clients with ideas that need shaping into compelling books. I also work as an editor with manuscripts at all levels of completion, from developmental edits all the way to final proofreading. My work has been published by Penguin Random House and Simon & Schuster; one project was adapted into a Netflix series, and I have a forthcoming science and wellness book with Stanford University Press. I’ve worked with clients ranging from scientists and entrepreneurs to first-time authors, building their ideas into book-length manuscripts that hold a reader’s attention. I can also assist with publishing consultations and book proposals.