“They Wrote the Book on It.”

The definitive book on the exact problem your startup is solving is still unwritten. Once we ghostwrite it with you, you are the person who wrote the definitive book on it. So, of course the startup you founded should be the one best positioned to solve it, no? Instant credibility.

1. You talk. One deep recorded interview — 90 to 150 minutes, booked at checkout — and it’s one founder interviewing another: you sit down with Peter Armstrong or Len Epp, founders of Leanpub, while GhostAI interviews alongside us. You pitch all the time. This is that, but friendlier. During this first session, we interactively build out your book’s outline with you, combining a founder’s judgment and the GhostAI skills. Plus your existing public writing: launch posts, blog posts, talks, podcast appearances. Plus, provide us with any internal documentation you can share.
2. GhostAI writes. GhostAI is the suite of AI skills we built at Leanpub on Anthropic’s frontier model, Claude Fable 5. The skills teach Fable to write like you: it studies your recorded interview and your writing samples (public blog posts, conference talk recordings, and private samples you provide, like emails or university essays), learns your voice, and drafts book-length chapters in it — at a speed no human ghostwriter can touch. An eval harness scores every chapter for fidelity to how you actually talk.
3. A Leanpub founder edits. Every chapter is reviewed and edited — in conjunction with the AI editing tools we built — by one of Leanpub’s founders: either Peter Armstrong, founder of Leanpub with over two decades as a software developer and the author of multiple technical and non-technical books, or Len Epp, a former investment banker with a DPhil in English from Oxford and the host of the Leanpub Podcast. That combination is the whole point: Fable 5 ghostwriting guided by the actual creators of GhostAI, plus full human review. You get incredible quality and incredible speed, in your voice. The result is polished and professional.
4. You review it with us. Shortly after the interview, you get the draft of the whole book. In a second recorded session we go through it together — you react to the whole thing, go deep on the sections that matter, and just talk; that conversation feeds straight back into GhostAI. The third session is the final review: touch-ups and sign-off before we publish.

You can choose to ship with an optional colophon — “How this book was made” — disclosing the whole method: recorded conversations and your writing samples, drafted by GhostAI in your voice, measured by an eval harness, edited by a Leanpub founder, reviewed and approved by you.

What we never do is ship words you haven’t approved. Everything passes the eval harness, a founder’s edit, and your review before it publishes.

Is it my voice?

Yes — and it’s measured, not vibes. We built AI skills so Fable learns how to write like you: GhostAI drafts only from your raw material — the interview plus your writing samples — and an eval harness scores every chapter against how you actually talk. A Leanpub founder reviews and edits before you ever see it, and in the review sessions you flag anything that doesn’t sound like you.

Do I approve everything?

Yes — but not chapter-by-chapter with a thumbs-up button. You get the whole draft after the interview, then two recorded review sessions with us: one to react to the whole book and go deep where you want, one for final touch-ups. Nothing publishes until you’ve signed off.

What if you sell this to my whole batch?

We can’t — we work on one founder book at a time, so a batch’s worth of these is literally impossible. Besides, we’re not that good at marketing. Finally, your book is in your voice, about your topic — another founder’s book, even in a category near yours, is a totally different book by a completely different person. The signal is your name and your thinking.

Who owns it?

You do. Copyright and royalties. The book publishes under your name — on the Leanpub store and on Amazon.

Isn’t this AI slop?

No — this is ghostwriting, compressed and brought into the AI era. Business books have been ghostwritten for as long as there have been business books: Lee Iacocca’s autobiography — the defining CEO bestseller — was written with William Novak, and David Goggins wrote Can’t Hurt Me with Adam Skolnick. Most important CEO books are ghostwritten. You’re an important CEO. Yours is too — and we do it proudly. And honestly: the great literary memoirs take hundreds of interview hours and years of writing — we’re not claiming that. We’re claiming a sharp, polished, professional book in your voice, in 28 days instead of three years. Slop is undisclosed, unaccountable generation. This is the opposite — a book made of founder-to-founder conversation: you’re interviewed by Peter or Len, founders of Leanpub, working with GhostAI; you talk through the whole draft with us in your review sessions; and when the book ships, we interview you twice more — on camera for your launch video, and for your episode of the Leanpub Podcast. Underneath it all: an eval harness that measures every chapter against how you actually talk, a Leanpub founder’s edit of everything, and your sign-off before anything publishes — with an optional colophon disclosing the method. You build under eval constraints. So do we.

What if I’m not racing a batch?

Then you probably don’t need the compression — and there are two other ways to get a similar book. The Expert Book ($24,000, paid in full at booking) is the productized version: the same GhostAI pipeline run by a professional Leanpub editor, published in 60 days — the efficient choice when the deadline isn’t the point, and you don’t need a Leanpub founder driving the process. The Executive Book ($72,000) is the deep partnership: a dedicated Leanpub founder works with you across three to five deep interviews and up to three review sessions, on a bigger book which takes longer to produce — 25,000 to 50,000 words — published in 90 days. The Founder Book is the middle rung: founder-led, launch-ready, built for exactly one moment.

Thirty minutes with either Peter Armstrong or Len Epp, founders of Leanpub. We talk through your category, the raw material you already have — talks, posts, podcast appearances — and what your table of contents could look like. If we don’t believe there’s a book in it, we will say so right on the call. We only want to do this if it helps you win.