Book publishing has a title for every kind of help a book can get: ghostwriter, collaborator, co-writer, book doctor, developmental editor and book coach. In a sensible industry each title would mean one thing and the buyer would know what they were paying for.
Unfortunately, the titles blur. Sellers pick whichever one ranks best in search, agencies stick every label on the same service page, and first-time authors end up paying an editor to do a writer’s job or a writer to do an editor’s. Clients reach me after paying earlier ghostwriters or AI tools for books that came out wrong, and every one of those cases is a needless loss.
I do two of these jobs. I’m a ghostwriter, with 54+ ghostwritten books behind me, and I’m a book coach. I don’t co-author books and I’m not a developmental editor, and I’ll tell you who to hire for those.
Picture your book as a car that has to get somewhere. Hire a ghostwriter and you’ve hired a driver: you own the car, you pick the destination, and they do the driving. Bring in a co-writer and there are two names on the title. When the car won’t start, a book doctor is the mechanic who rebuilds it, while a developmental editor inspects it and hands you a report on everything that’s wrong. And a book coach sits in the passenger seat like a driving instructor while you hold the wheel.
| Role | What they do | Who writes the sentences | Name on the cover | In the car |
|---|---|---|---|---|
| Ghostwriter | Writes your book from interviews, in your voice | The ghostwriter | Yours alone | The hired driver |
| Collaborative writer | Ghostwriting with a credit on the book | The collaborator | Yours, with the writer credited | Driver with a name on the door |
| Co-writer or co-author | Shares the book, royalties and control | Both of you | Both names | Two names on the title |
| Book doctor | Repairs an existing manuscript with heavy rewriting | The book doctor | Credit only if the author agrees | Mechanic who rebuilds it |
| Developmental editor | Diagnoses structure and sends an editorial letter | You, during revision | Your own name | Inspector handing you a report |
| Book coach | Guides, reviews your pages and keeps you moving | You, the author | Your own name | Driving instructor in the passenger seat |
What is a collaborative writer?
A collaborative writer, or collaborator, is a ghostwriter whose name appears on the book. Publishers use the title for writers credited on the cover or title page with “with” or “and,” in the style of “by the author, with the writer.” The work is ghostwriting: interviews, drafting and revision in the author’s voice.
The credit is a negotiated term, and whether a book names the writer is the author’s decision. I’m fine either way, and I’ve written about how it works in Do Ghostwriters Get Credit?.
In the car, the collaborator is the same hired driver with a name painted on the door.
Should I find a writing partner to write a book with me?
Hire a ghostwriter and you’ve hired a driver: you own the car, you pick the destination, and they do the driving.
Only if you want to share the book. A writing partner or co-writer is a co-author: both names on the cover, and in most deals shared royalties and shared control over every edition from here on. That’s a partnership, and it needs a partnership agreement. Have a lawyer draft it before either of you writes a page, and settle who controls future editions and what happens if one of you walks away halfway through.
Partnerships built on a handshake fall apart when one partner loses interest and the other still wants the book finished, so write the exit terms down while you still like each other.
Co-authorship works for two experts who each bring half the content, like a physician and a researcher, or two founders with one story. If one of you is supplying the story and the other is supplying the sentences, that’s ghostwriting, and pretending otherwise leaves you with a co-owner of your own life. My comparison in co-author versus ghostwriter walks through which structure fits.
I don’t do co-authored books. The few co-author requests I’ve had were spec deals or royalty splits, where the writer does months of work now in exchange for a share of sales that’ll probably never arrive. I decline those, because I don’t work for free, and no professional ghostwriter should. I tell clients they’re unlikely to earn the fee back through book sales, so I’m not going to bet my own income on the same sales.
What is a book doctor?
A book doctor repairs a manuscript that already exists, from line fixes to heavy rewriting of whole chapters. The name suggests a diagnosis followed by surgery, and unlike a developmental editor, a book doctor does the rewriting instead of handing it back to you.
Book doctoring and ghostwriting overlap more than the titles let on. A lot of my ghostwriting starts from somebody else’s wreck. I take over books that one to three earlier ghostwriters worked on, where the last writer missed the schedule, asked for more money partway through, or never caught the client’s voice. Clients also bring me handwritten drafts, and more and more arrive with a book they tried to write with AI that came out badly.
That last group frustrates me. The software was sold to them as a writer, and what came back was three hundred pages of smooth, confident crap with nobody’s voice in it. A fix means going back to interviews, since the draft never had the author in it. My article on what it costs to fix an AI-written manuscript explains what drives the price of a rescue.
Whoever you hire for a repair job, ask for a paid sample first: five pages of your manuscript, rewritten. You’ll see whether the writer keeps your voice or swaps it for theirs, and a swapped voice is the failure that sent a lot of those clients to me in the first place.
I don’t call myself a book doctor, because when I take on a broken manuscript I treat it as a ghostwriting project: interviews and a rewrite in the client’s voice, with a new outline where the old one failed. One exception: when an earlier ghostwriter walked away from the client, I pass, because a writer who abandoned a client had a reason, and I’d rather not inherit it.
What does a developmental editor do?
A developmental editor reads your full draft and tells you what’s wrong with its structure, argument, pacing and content, then leaves the rewriting to you. You get a long editorial letter and margin notes, and you do the revision.
That revision is where the cost hides. The fee buys the letter, and then you face months of rewriting on your own, with the same schedule and the same blank page that stalled the draft the first time. A writer who loves revising will welcome those months. Someone who dreaded every chapter gets a bill and a to-do list, and paying for that when what they wanted was a finished book is a bad trade.
For a writer who can write, that report is gold. It catches the chapter that belongs in the middle, the argument that never pays off, the character who vanishes at the halfway mark, and the forty pages you could cut without anyone noticing. A good developmental editor sees the book the way a reader will, and says so bluntly.
When a client’s manuscript is done, I refer them to trusted editors for editing, proofreading and formatting, because a fresh set of eyes catches what the writer can’t. My article on why your manuscript needs a professional editor covers what each pass does. Hire a developmental editor when you’re the one who’ll do the repairs.
I have a rough draft. Do I need a ghostwriter or a developmental editor?
Decide first whether you want to keep writing. If you do, hire a developmental editor or a book coach and do the revision yourself. Finished writing and want the book done? Hire a ghostwriter who works from existing drafts.
Look hard at the draft, too. Sound structure plus your real voice on the page makes it an editing job. If the draft wanders and sounds like a different person in every chapter, it needs a rewrite, and an editor’s letter will only tell you what you already suspect. A developmental edit on that draft is like buying an inspection for a car with no engine.
Your time matters as much as the draft. Plenty of clients apologize for their writing or tell me they can’t write, and I tell them that’s the reason people hire a ghostwriter. If you’ve dreaded opening the draft for two years, an editor’s report won’t change that, and a ghostwriter will.
What’s the difference between a book coach and a ghostwriter?
A book coach helps you write your own book, and a ghostwriter writes it for you. With coaching you hold the wheel the whole way. The coach helps you plan the route, keeps you moving, reviews what you’ve written and tells you where you’re drifting.
Book coaching suits people who want to be the writer and need structure and an experienced eye. It costs far less than ghostwriting, and you end up with a book you wrote yourself. My guide Ghostwriting vs Book Coaching vs Writing It Yourself helps you decide, and I also offer writing coaching sessions of an hour or two when all you need is to get unstuck.
Some authors mix the two. They write the chapters they love and hand off the ones they don’t, and I describe how that works in the hybrid model.
How do I tell what kind of book help someone is selling?
Ask who writes, whose name goes on the cover, who takes royalties, and what you hold at the end.
Ask four questions and listen to how fast the answers come. Someone who pays for a developmental edit and gets a spell check back has been robbed, and these questions stop it. Will you write new sentences, or only comment on mine? Whose name goes on the cover? Do you take a share of royalties or rights? And what do I hold in my hands at the end: a finished manuscript, an editorial letter, or a series of feedback sessions?
From a ghostwriter you’ll hear that they write, your name goes on the cover, they charge a fee with no royalties, and you get a manuscript. Developmental editors comment on your pages for a fee and send a letter. Co-authors write alongside you, share the cover and the royalties, and own the book jointly with you. With a book coach, you do the writing under your own name and finish with a draft you wrote yourself. Anyone who can’t answer those four in plain English hasn’t decided what they’re selling you.
In the car, you’re asking who drives, whose name is on the title, who gets a cut of the resale, and whether you end up with a running car or a list of repairs.
Get the answers in writing. A statement of work that spells out deliverables keeps both of you clear on whether you’re buying a manuscript or a critique.
Can one person be both your book coach and your ghostwriter?
Yes, as long as each engagement is defined. I do both, and the contract says which job I’m doing on your book. With coaching, you write and I guide; ghostwriting flips that, and you supply the story and the approvals.
An author could start in coaching and move to ghostwriting once their calendar fills up, or start with ghostwriting for the hard chapters and write the easier ones themselves. Both work when the contract says who writes which chapters.
Who edits a ghostwritten book?
A separate editor, in most professional setups. I deliver a solid manuscript draft, and then I refer clients to trusted editors for editing, proofreading and formatting. Cover design isn’t part of my work either. There’s more on who does what after the draft in Does My Ghostwriter Edit, Proofread, Format and Design the Cover?.
An outside editor protects the book. The person who wrote a sentence reads what they meant, so a fresh editor catches typos the writer never will. The proofread comes last, after layout, because formatting introduces errors of its own. Plan for the editor from the start, since that fee comes after the ghostwriter’s, and a lot of first-time authors assume the draft is the finished book.
My take
Decide first whether you still want to do the writing. If you do, hire a developmental editor or a book coach. If you’re done, hire a ghostwriter who works from drafts. Get a statement of work that says which job you’re buying. Then budget for an outside editor no matter who wrote the draft, because the person who wrote a sentence reads what they meant and misses the typo.
Pick your seat in the car
Before you hire anybody, answer two questions. Do you want to write this book yourself? And should your name stand alone on it? Say yes to both and you want a book coach, with a developmental editor once the draft exists. Want your name alone but no writing? You want a ghostwriter. If you want to share the book with a partner, find a co-author and a lawyer to write the agreement.
Then make whoever you’re talking to name which job they do. Anyone who calls themselves a book doctor, a collaborator, an editor and a ghostwriter all on one page is selling a keyword, and anyone who sells a “developmental edit” that comes back as a comma cleanup has taken your money for an inspection nobody performed. I’ve got no respect for either.
If you want to write it yourself with a guide beside you, start with book coaching. For a book written for you, my ghostwriting services page explains how I work, the Book Discovery Intensive is the first step, and the Ghostwriting Hub has the rest of the series. Either way, you end up at the destination you picked, climbing out of your own car with the keys in your hand.
Once you know which kind of help you need, The Ghostwriting Advantage covers how to get your book written for you by a ghostwriter, drawn from the 54+ books I’ve ghostwritten.
