The Author's Edge: Issue 11
Your Amazon Reviews Are Free Marketing Copy. Start Using Them.
Your readers are writing your marketing copy for you, and you are probably ignoring it. Every Amazon review is a piece of social proof that speaks in the language your audience actually uses, not the language you think they use. The gap between those two things is where most book marketing fails.
When a reader writes, "This book helped me finally have the money conversation with my spouse," that is more persuasive than anything you could write on your sales page. When a reviewer says, "I highlighted every other page," that tells potential buyers exactly what to expect. These are testimonials that arrived without you asking, written by people with no incentive to flatter you. They are pure gold, and most authors let them sit on Amazon doing nothing.
The strategy is to mine your reviews systematically, pull the most compelling quotes, and repurpose them across every marketing channel you own: your website, your social media, your email signature, your speaker sheet, and your book's own sales page. One strong review, formatted and placed correctly, can outperform an entire marketing campaign.
Let's look at how two very different authors would run this exact play.
How a prolific author would run it: Kary Oberbrunner
Kary Oberbrunner is a Wall Street Journal and USA Today bestselling author of 14 books, including Your Secret Name, Day Job to Dream Job, Unhackable, and Your Book Is Not a Business Card. He is also the CEO of Igniting Souls and Instant IP, companies that help authors and entrepreneurs turn their intellectual property into multiple streams of income. He holds the Berry Chair of Entrepreneurship at Cedarville University and speaks internationally on leadership, personal growth, and entrepreneurship.
With 14 books in the market, Kary has something most authors do not: a deep catalog of reviews that span multiple topics and audiences. His professional development books attract coaches, entrepreneurs, and corporate leaders. His fiction (the Elixir Project series) attracts a completely different reader base. Each review set tells a different story about who his audience is and what they value.
Kary can mine reviews across his catalog to build a "readers say" section for his coaching and consulting practice. A review of Unhackable that says "This changed how I approach my morning routine" becomes a data point for his speaking page. A review of Day Job to Dream Job that says "I quit my corporate job three months after reading this" becomes the headline on his coaching sales page. A review of Your Book Is Not a Business Card that says "Every author needs to read this before they publish" becomes a pull quote in his email campaigns to aspiring authors.
The volume of reviews across 14 books gives Kary something powerful: pattern recognition. When multiple reviewers across multiple books use the same language, that language becomes the foundation of his positioning. He is not guessing what his audience cares about. His readers are telling him, review by review.
Website: https://karyoberbrunner.com
How an inspirational author would run it: Grace Kuto
Grace Kuto takes the same strategy into a profoundly different space. Grace is a native Kenyan, a retiree of Oregon Health and Sciences University after nearly 30 years of service, and co-founder of the Harambee Centre. She is also the author of Be the Gift, Be the Light, an inspirational book rooted in faith, service, and the belief that every person has a gift to offer the world.
Grace's audience is not corporate professionals tracking ROI. Her readers are people seeking purpose, healing, and connection. And their reviews reflect that. When a reader writes about how the book helped them find meaning during a difficult season, or how a specific chapter shifted their perspective on what it means to serve others, those words carry an emotional weight that no marketing copywriter could manufacture.
For Grace, review mining is not about building a sales funnel. It is about building a testimony wall. Each review that describes a personal transformation becomes an Instagram post that speaks directly to someone else going through the same experience. A review that says "This book reminded me that I have something to offer" becomes a graphic with the quote overlaid on an image, shared to an audience of people who need to hear exactly that message.
The contrast with Kary is the difference between professional development reviews and personal transformation reviews. Kary's reviews use language like "actionable," "game-changing," and "ROI." Grace's reviews use language like "healing," "purpose," and "hope." Both types of language are equally powerful for marketing. They just speak to different hearts.
Website: https://harambeecentre.org
Your 15-Minute Action Step
Set a timer. This should take you no more than 15 minutes.
1. Go to your book's Amazon page and read every review. Copy the five most compelling quotes into a document. Look for reviews that describe a specific transformation, use vivid language, or mention a result the reader achieved.
2. For each quote, write down the reviewer's first name (or "Verified Reviewer" if anonymous) and the star rating. This adds credibility when you use the quotes.
3. Create a "Readers Say" section for your website. A simple block with three to five review quotes, each attributed to a reviewer name and star rating, placed on your book's landing page or your homepage.
4. Turn your single best review into a social media graphic. Use Canva to create a simple image with the quote text, the reviewer's first name, and your book cover. Post it with a caption like "This is why I wrote this book."
5. Add your strongest review quote to your email signature. Format it as: "[Quote]" followed by the reviewer's name and a link to your book.
Swipe File
Social Proof Graphic Template (for Canva or similar):
Background: Solid color or subtle texture that matches your brand
Quote: "[Review quote, 15 to 30 words max]" in large, readable font
Attribution: Reviewer first name, star rating, "Amazon Verified Review"
Book cover: Small image in the corner
Your name/website: Small text at the bottom
Caption Template for Social Media Posts:
Option A: "This is why I wrote [Book Title]. [Quote]. If this resonates with you, the link is in my bio."
Option B: "I did not write this. A reader did. And it means more than any marketing copy ever could. [Quote]."
Option C: "[Quote]. When I read reviews like this, I remember why the hard parts of writing were worth it."
"Readers Say" Website Section Template:
Heading: What Readers Are Saying About [Book Title]
Layout: Three to five quotes in a clean grid or stacked format
Each quote block: Open quotation mark, review excerpt (two to three sentences max), close quotation mark, reviewer name, star rating
Call to action below: "Join them. Get your copy on Amazon." with a linked button
Pro tip: Update your "Readers Say" section every quarter. Fresh reviews keep the section feeling current, and returning visitors see new social proof every time they land on your page.
This is Issue #11 of The Author's Edge, our monthly newsletter for authors who want their book to do real work instead of gathering dust. Every issue gives you one tactic and a 15-minute action step. Want each new issue, plus a community of published authors to trade launch support and cross-promotion with? Join the free Jetlaunch Author Network at jetlaunch.net/network.
