Definition
Self-written
You draft every chapter. It costs the least money and the most time. It works for experts who enjoy writing and can protect several hours a week for months.
Book formats
Book Formats for Business and Legal Authors
Most authority books should launch in paperback and ebook at minimum, because a printed copy is what CEOs and attorneys hand to clients and an ebook reaches readers instantly.
Last updated: November 2026
Which book format is best for an authority book?
Paperback is the workhorse: affordable to print, easy to hand out at talks and consultations. Add an ebook for reach and consider an audiobook if your audience commutes or listens to podcasts. Big Impact Books clients use their books in speaking, referrals, and media, so print matters most.
Print, digital, and audio formats compared
| Format | Best use | Strength | Trade-off |
|---|---|---|---|
| Paperback | Client gifts, events, consultations | Tangible and affordable to print | Shipping and printing costs per copy |
| Hardcover | Premium gifts, keynote stages | Feels substantial on a desk | Higher cost per copy |
| Ebook | Instant reach, lead magnets | No printing cost, delivered immediately | Less memorable than a physical book |
| Audiobook | Busy listeners, podcast audiences | Your own voice builds trust | Recording and production effort |
How the words get written: three approaches
Definition
Interview-based
You talk; a team writes. Big Impact Books uses weekly interviews of about one hour so your expertise and voice become the raw material. Manisha P. Patel said this let her talk through each chapter in an organized way.
Definition
Draft rescue
You already have pages. A team edits, restructures, and finishes them. William R. Mitchell’s rough draft became Say Goodbye to Credit Card Debt this way.
Is interview-based writing the same as ghostwriting?
They overlap but differ in emphasis. Traditional ghostwriting often means a writer creates the book with the named author in the background. Big Impact Books founder Melanie Herschorn says she refuses to hide behind ghostwriting: clients own their ideas, and the book is built from their interviews in their own voice.
Whichever route you choose, insist on reviewing every chapter. Your name is on the cover and your reputation is on every page. To see how format and writing choices fit into the full journey, read the publishing process or return to the book proposal writing service guide.
Questions about formats and writing approaches
What are book writing services?
Book writing services help you get the manuscript done through coaching, developmental editing, ghostwriting, or interview-based writing. Big Impact Books uses weekly interviews and existing drafts as raw material, then shapes them into a finished book in the author’s voice, followed by publishing and promotion support.
More in the full FAQ about What are book writing services?Is Big Impact Books a ghostwriting service?
Not in the usual sense. Founder Melanie Herschorn says she refuses to churn out cookie-cutter content or hide behind ghostwriting. The work is done for you, but it is built from your interviews and your voice, and clients own their ideas as the true authors of the book.
More in the full FAQ about Is Big Impact Books a ghostwriting service?Should I use AI to write my book?
Many authors use it in some way. ManuscriptReport’s 2026 statistics page lists ChatGPT at 85%, Claude at 54%, and ProWritingAid at 50% among the generative AI tools authors use. For an authority book, keep your own expertise, stories, and voice at the center, because that is what readers trust.
More in the full FAQ about Should I use AI to write my book?How long should a business book be?
There is no fixed rule. Length should fit the promise of the book: enough to solve the reader’s problem and show your thinking, without padding. Many authority books run shorter than general nonfiction. Settle the length during book planning, based on who the reader is and what the book needs to do.
More in the full FAQ about How long should a business book be?Will the book sound like me?
It should. Big Impact Books says its process is designed to honor the author’s authentic voice, and its blog post Your Book Needs Your Voice makes the case in detail. Interview-based writing helps, because the raw material is your own spoken explanations, stories, and phrasing rather than a stranger’s guesses.
More in the full FAQ about Will the book sound like me?Can you turn my rough draft into a published book?
Yes, that is one path Big Impact Books offers: its process can turn existing drafts into finished books. William R. Mitchell, founder of LegalEdge Debt Solutions and author of Say Goodbye to Credit Card Debt, said Melanie took an unfinished, rough draft and turned it into a published book he will forever be proud of.
More in the full FAQ about Can you turn my rough draft into a published book?Want to see how a done-for-you authority book works?
Big Impact Books plans, writes, publishes, and promotes books for CEOs and attorneys in about one hour a week of interviews. Read about the full process and free checklists on its main website.