Every parking garage in California has a sign warning that the place contains chemicals known to cause cancer. So do apartment buildings, medical offices and, for a while, coffee shops. The warnings went up because a 1986 law made them cheaper than the alternative, and they’re on so many things now that almost nobody reads them. A warning on everything warns you about nothing.
I think “human-written” book labels are headed the same way.
At the Frankfurt Book Fair this month, a British company called Books By People announced that its certification mark for human-authored books had been registered with the UK Intellectual Property Office. Publishers pay to join, then pay again to have each book checked and stamped. A French service is selling a “human creation” label. The Authors Guild in the United States has been issuing its own Human Authored seal since early 2025. A whole small industry is growing up around one promise: this book was written by a person.
What is a human-written book certification?
It’s a mark a publisher or author puts on a book to say no AI wrote it. Three programs lead the field, and they check very different amounts.
| Program | Who pays | How the book is checked |
|---|---|---|
| Books By People (UK) | Publishers: a membership fee plus a fee per book | Authorship declaration, proprietary software, and a manual look at early drafts and research notes |
| Librinova (France) | Writers: a small fee per book | AI detection software plus an interview with an auditor |
| Authors Guild Human Authored (US) | Free for members, $10 per title for others | None. The author’s identity is verified and the author signs a license saying the book is human-written |
All three allow spelling and grammar checkers. The Authors Guild says outright that no reliable way to detect AI exists, so it doesn’t try. About 6,500 titles bear its seal. Librinova has labeled about 200. Books By People launched with five independent publishers.
How does Books By People decide a book is human?
It asks the writer to sign a declaration and runs the manuscript through its own software. Then people go through the early drafts and research materials the writer and editor hand over, looking for what co-founder Esme Dennys calls “indicators of humanity.” The idea is to show the book came out of a natural process of drafting and redrafting.
That’s more work than a signature, and I’ll give them that.
It also rests on a piece of software nobody outside the company can examine, the same kind of tool that has already cost real authors their books. Earlier this year Hachette canceled the American release of the horror novel Shy Girl over alleged AI use. The author said the editor she’d hired had used it. Last month in France, a debut novelist was dropped from consideration for the country’s top literary prize after an anonymous account ran his book through an AI-detection website. He denies using AI.
I covered why a detector score can’t carry that weight in AI detection cannot be evidence.
Certification built partly on the same technology doesn’t fix that problem. It sells it.
Do readers care whether a human wrote a book?
A warning on everything warns you about nothing.
Some will notice the label. Most won’t give a damn. I haven’t run a survey, and I’m not pretending this is research. It’s what I see after a long career of writing books and watching people buy them.
The people who care intensely about whether AI touched a book are writers and artists. I understand why. They’re worried about their work, their income and their craft, and those are fair worries. But readers aren’t buying a process. They want a good read. The mystery should keep them up past midnight, and the business book should tell them something useful by page thirty. Nobody puts a novel back on the shelf because the cover lacks a seal.
An indie author once asked her promotion group about adding a “No AI” badge to her covers, and they talked her out of it, and I went through their reasons in AI labels on TikTok and Meta. A paid certification is the same badge with an invoice attached.
What does California’s Proposition 65 have to do with book labels?
California voters passed Proposition 65 in 1986. It requires businesses to warn people about exposure to any of the more than 900 chemicals the state lists as causing cancer or birth defects. The intent was good. The result is warnings on parking garages, apartment lobbies and dental offices, because posting the sign is cheaper than proving you don’t need one. A judge even ruled in 2018 that coffee shops had to warn about a chemical formed in roasting, until the state carved coffee out.
Critics say people ignore the signs now. One law professor called them “a largely useless, ineffective, un-impactful form of warning and disclosure.” Defenders argue the law pushed some companies to clean up their products. They have a point. It’s still hard to find anyone who reads the sign in a parking garage.
Proposition 65 also built an industry. From 2000 to 2018, companies paid about $368 million in settlements under the law, and roughly two-thirds of it went to attorney fees and costs. Who benefits from a label everyone has to carry? Mostly the people who sell the label, enforce it or sue over it. The shopper still walks past the sign.
Human-written labels will go the same way, only in reverse. If the seal sells books, every publisher will want it, and a mark that costs $10 and a signature will end up on nearly everything. Once it’s on everything, what does it mean? Nothing. If it doesn’t sell books, it’s money spent on a sticker. Either way the reader learns nothing about whether the book is any good.
A “human-written” seal is gatekeeping with a fee. Readers don’t buy a process. They buy a good read. – Richard LoweShare on X
Who are human-written book labels really for?
Follow the money. Under Books By People, publishers pay to join and pay again per book. Under the Authors Guild program, non-members pay per title. The people paying are writers and the companies that publish them, and the product they’re buying is permission to be believed. Who decided a writer has to pay before readers will trust her?
That’s gatekeeping with a fee. A writer who can’t afford it, or whose small publisher didn’t join, now carries an implied question mark next to the writers who paid. A self-published author with no seal looks suspect, for no reason other than skipping a toll. And the people pushing hardest for these seals are mostly other writers and artists. That’s gatekeeping in its oldest form: the insiders build a gate and charge admission.
None of this stops a liar, either. A self-certified seal is a signature. A software check can be fooled, and the Authors Guild has said publicly that nobody can reliably detect AI writing. An author willing to cheat will sign the form. The author who told the truth pays.
Would a ghostwritten book qualify as human-written?
Every word of the more than fifty books I’ve ghostwritten came from a human. Me. None of them came from the person whose name is on the cover. That’s the arrangement everybody signed up for. I explained why it deceives nobody in the piece on publishing’s AI cancellations.
The certifications haven’t said how they handle it. The Authors Guild’s published guidance defines a human-authored book as text written entirely by one or more human beings, and it doesn’t mention ghostwriters at all. Books By People’s standard says the writing has to originate from the author. Does a ghostwritten memoir originate from the author? The stories do. The sentences don’t. A label that can’t answer the oldest arrangement in publishing isn’t ready to referee the newest one.
What should an author do instead of buying a human-written label?
You don’t need a seal to answer the AI question. You need habits that answer it for you, should anyone ever ask.
Keep your drafts. Save the dated versions, the notes, the outline you abandoned and the chapter you rewrote four times. Word processors and cloud folders keep version history for free. That trail is exactly what Books By People charges publishers to examine, and you can hold onto it at no cost.
Name the humans. Credit your editor, your cover artist and anyone who read early drafts. A named person on the copyright page tells a reader more than a logo from a company they’ve never heard of.
Say what you used. If a grammar checker cleaned up your commas or a chatbot helped you brainstorm titles, a sentence in the acknowledgments covers it. Most readers shrug at a tool and turn on an author who hid one.
Write the better book. Readers judge the pages. No other certification has ever sold a second book. A reader who loved your first one doesn’t check the back cover for a seal before buying the next.
Spend the money you’d have put into a label on a professional editor. I tell every ghostwriting client to hire one, and no sticker will catch a sagging middle or a repeated phrase the way a good editor does. You’ll get a better book out of it, and readers buy better books.
My take
A human-written seal is gatekeeping with a fee. Writers and artists are the ones who care about it, and they’re the ones paying for it, while the reader in the bookstore just wants a good book. Put the seal on everything and it becomes a California cancer sign: technically true, universally ignored. Spend the money on an editor or a better cover, and let the pages do the convincing.
Read the book, not the sticker
If you’re an author weighing one of these programs, ask what it will do for a reader who has never heard of it. If you can’t answer, keep your money. If AI use worries you, the straightest answer is a plain sentence in your acknowledgments about what you used and what you didn’t. I walk through that in AI disclosure on your book. The rest of the debate lives in the AI & Writing Hub, and if you’d like a human to write your book with you, here’s how my ghostwriting works.
California put a warning on every parking garage and taught a whole state to stop reading warnings. Book publishers can skip that lesson. Readers already have a test for whether a person cared about a book. They read it.
My case for using AI to sharpen your own judgment, and what changes for people who use it well. No certification required.
