If you want to know how to get Amazon book reviews without risking your KDP account, the short answer is: send advance copies, follow up properly, and stay well clear of anything that looks like compensation or coercion. Amazon publishes roughly 7,500 new books every day, so reviews matter — but not for the reasons most authors think, and not by the methods most forums suggest.
Customer Reviews vs. Editorial Reviews — They Are Not the Same Thing
Most authors conflate two completely different systems on Amazon. Customer reviews are the star ratings left by readers on your book's product page. Editorial reviews are blurbs, endorsements, and press quotes that you as the author add via Amazon Author Central — they sit above the customer reviews section and carry no star rating.
Both matter. Customer reviews signal social proof to browsing readers. Editorial reviews let you place a credible endorsement front and centre, even before you have a single customer rating. You need a strategy for each, and Amazon has different rules for each. We'll cover both below.
Who Can Actually Leave a Customer Review (The Eligibility Rules)
Before you spend time building a review strategy, understand who Amazon will accept a review from. Amazon's Community Guidelines require that a reviewer must have spent at least $50 on Amazon.com using a valid credit or debit card in the past 12 months. Promotional discounts, Prime memberships, gift card balances, and promotional credits do not count toward that minimum.
Amazon also states explicitly: "We don't allow individuals who share a household with the author or close friends to write Customer Reviews for that author's book." That means your partner, your siblings, and your close friends are disqualified — even if their intentions are honest. Reviews from these people will be removed when Amazon detects them, and detection is increasingly automated.
If someone in your ARC list turns out to be a household member or a very close personal contact, do not ask them to review. Ask them to share the book instead.
What Amazon Explicitly Prohibits
Amazon banned all incentivised reviews in October 2016. The prohibited list covers more ground than most authors realise:
- Review swaps — you review my book, I review yours. Amazon's Terms of Service prohibit this.
- Gift cards, contest entries, refunds, or payments in exchange for a review. If a service compensates reviewers this way, using it violates Amazon policy regardless of whether you knew.
- Demanding a review in exchange for a free or discounted copy. Amazon's own language: "you may not demand a review in exchange or attempt to influence the review."
- Requesting a specific star rating. Asking for "5-star reviews" is not permitted. You must ask for honest reviews only.
- Anything beyond a free or discounted copy of the book itself. Amazon states: "Offering anything other than a free or discounted copy of the book — including gift cards — will invalidate a review, and we'll have to remove it."
If Amazon determines you have attempted to manipulate reviews, consequences include immediate suspension or termination of account privileges, removal of all affected reviews, and delisting of your books. This is not theoretical — it happens.
Method 1: ARC Campaigns (Your Core Strategy)
An Advance Review Copy campaign means distributing free copies of your book before launch to readers who have agreed to leave an honest review. Amazon explicitly permits this. The key phrase is honest review — you cannot ask for positive reviews, only voluntary ones.
The recommended timing: send ARC copies 10–14 days before launch (BookFunnel is the standard delivery tool). On launch day, send an email with your direct Amazon review link. Then send one final follow-up 7–10 days after launch, thanking people who reviewed and gently reminding those who haven't.
For reviewers who received a free copy, disclosure is required. Acceptable language includes: "I received a copy of this book via [source] and I'm reviewing it voluntarily" or "I received an ARC for an objective review." You should remind your ARC readers to include this.
Conversion rates are modest. Expect roughly 1 review per 100 paid sales and 1 review per 1,000 free downloads. ARC campaigns typically outperform both because reviewers have opted in specifically to review. Keep that in mind when sizing your ARC list.
Method 2: Paid and Free ARC Services
If you don't have an existing reader list, paid services can seed your reviewer pool. Costs and yields vary significantly:
- Hidden Gems — charges $3 per reviewer and typically generates 20+ reviews (50+ in some genres). Booking is 6+ months out in most genres. Plan well ahead.
- BookSprout — subscription service at $10–$20 per month with a free trial tier. Combines ARC list management with reviewer discovery.
- StoryOrigin — free to use for ARC distribution and author cross-promotions.
- LibraryThing — free eBook giveaways. Setting a giveaway to 100 eBooks typically results in 30–50 claims and an expected yield of 1–2 Amazon reviews.
- Uncarved ARC Builder — costs $52.50 and is expected to generate 3–5 reviews.
- Book Review 22 — costs $250. The process takes approximately 7–10 days from submission to reader distribution, with a follow-up including review links sent about 2 months after ordering.
- Reading Deals — $79 standard or $299 premium tier.
- Goodreads Giveaways — cost $119–$599. One experienced author gave away 20 copies and received zero directly attributable Amazon reviews. Not recommended.
The primary practical reason to get early reviews isn't the Amazon algorithm — it's that many paid promotional newsletter sites require a minimum of 5–10 reviews with a 3.5–4.0 star average before they'll accept your book. That's the real unlock. For context, BookBub does not have a minimum review count requirement, despite a widespread myth claiming 50 reviews are required. And there is no Amazon algorithm threshold at 50 reviews either — a book with 10 reviews can outsell one with 700.
Method 3: Your Email List
If you have a newsletter list, your existing readers are your most willing reviewers — and they're already qualified under Amazon's eligibility rules. An email to your list asking for honest reviews of a new release, with a direct link to the Amazon review page, will typically outperform any paid service on a per-reader basis.
Keep the ask simple and direct. Explain what the book is, link straight to the review page (not the book listing), and tell them you're looking for honest feedback — not praise. If you don't yet have an email list, building one should be a higher priority than any review service. ARC services are a bridge, not a permanent solution.
Method 4: Back Matter + KDP Select Free Promotion
Inside your book's back matter, include a short, direct request for an honest review. Place it on the final page after the story ends, before any other materials. Keep it brief — one short paragraph with a link or QR code to your Amazon review page.
Pair this with a KDP Select Free Book Promotion, which lets you offer your Kindle eBook for free for up to 5 days per 90-day KDP Select enrollment period (the 5 days can be consecutive or split). The promotion must be scheduled at least 1 day in advance, and the earliest start date is the second day of your KDP Select period.
At the standard conversion rate of 1 review per 1,000 free downloads, you need volume to make this worthwhile — at least 3,000–5,000 downloads, which typically requires paid newsletter promotion to achieve. Also note: review scores from free promotions tend to skew 0.5–1.0 stars lower than scores from paid sales, because free readers include more casual downloaders.
Before running a free promotion, check your estimated sales data. The BSR Sales Calculator on Pubscout can help you understand what a given BSR rank translates to in daily sales volume, which is useful for sizing whether a free run is worth the investment in newsletter advertising.
Method 5: Editorial Reviews via Author Central
Editorial Reviews are underused by most KDP authors. You add them yourself via Amazon Author Central — no reader action required. Navigate to the Books tab, select your book, click "Edit book details," then click "Add review" under "Your Editorial Reviews."
Eligible sources for editorial review content include: blurbs from other authors, quotes from genre blogs or websites, press coverage, and professional endorsements. Unlike customer reviews, paying a blog or website for a review that you then use as an editorial blurb is permitted under Amazon's policy.
What you cannot include: phone numbers, URLs, addresses, time-sensitive statements, pricing information, promotional language, or profanity. A heatmap study by Kindlepreneur found that readers pay most attention to the reviewer's name and credential — not the review text itself. Aim for 6–10 editorial reviews; fewer and shoppers skip the section, more and they start to ignore it.
Editorial reviews appear above customer ratings and are visible immediately when your book launches — making them especially valuable in your first few weeks before customer reviews accumulate. See more approaches on our KDP how-to guides page.
Picking the Right Niche Makes Reviews Work Harder
None of these review strategies work well if your book is competing in an oversaturated niche. Five reviews on a well-targeted book in a low-competition category will drive more sales than fifty reviews on a book buried under thousands of similar titles. Use the KDP niche pages on Pubscout to find categories where early traction is actually achievable.
The Pubscout Chrome Extension shows live BSR, estimated monthly sales, and niche data directly on any Amazon book page — useful for checking whether the reviews on competing titles are actually translating to sales before you commit a budget to your own review campaign.
The Short Version
Getting Amazon book reviews legitimately comes down to a few repeatable actions: build an ARC list (your own list first, paid services second), time your outreach correctly around launch, include a back-matter review request in the book itself, and add Editorial Reviews via Author Central from day one. Avoid anything that looks like compensation, trading, or coercion — the penalties are account-level, not just review-level. And before you spend money chasing reviews, make sure your KDP Royalty Calculator shows the book can actually earn back that investment at realistic sales volumes.