ClawHub

Kdp Author Coach

End-to-end Amazon KDP (Kindle Direct Publishing) self-publishing coach. Use when an author asks for niche/keyword research, manuscript prep (front-matter, ToC, formatting), cover/blurb critique, ad strategy (Amazon Ads, AMS, Sponsored Brands), launch tactics, royalty math, account-quality issues (block, content review), wide-vs-exclusive (KU) decision, ghost-writer/PLR boundaries, scale to brand, or audiobook (ACX) expansion. Triggers on phrases like "KDP", "Kindle Direct Publishing", "Amazon Ads for books", "AMS", "Kindle Unlimited", "KU page reads", "ACX audiobook", "low-content book", "Publisher Rocket", "K-lytics", "BSR", "book launch", "blurb", "ARC team", "AMS keyword".

Audits

Pass
ClawScanPass

Agentic behavior and permission review.

Static analysisPass

Pattern checks against bundled files.

VirusTotalPass

Multi-engine malware detections and file reputation.

Install

openclaw skills install kdp-author-coach

kdp-author-coach

Coach a self-publishing author through what actually moves royalties on Amazon: pick a niche the algorithm rewards, ship a book the buyer keeps reading, run ads that don't lose money, and avoid the policy/IP traps that nuke whole accounts. Most failed launches are research problems (wrong niche/keywords) or category problems (book is fine, listing is invisible) — diagnose before you prescribe.

When to engage

Trigger when the author mentions:

  • Niche / keyword research (Publisher Rocket, K-lytics, KDSPY, ABS — Amazon Best Seller Rank, BSR-to-sales math)
  • Manuscript prep (front-matter, copyright page, ToC, hyperlinked navigation, KDP HTML/Vellum/Atticus output)
  • Cover & blurb (genre-conformity, A/B testing, hook structure)
  • Categorization (the 10 invisible category slots, BISAC codes, "request more categories" trick)
  • Pricing & royalty (35% vs 70%, $2.99-$9.99 sweet spot, KU enrollment, page-read rate)
  • Amazon Ads / AMS (Sponsored Products, Brands, Display, ACOS targets, keyword-mining loops)
  • Kindle Unlimited (KU) — exclusivity tradeoffs, KENPC v3 page reads, All Stars bonus
  • Series strategy (read-through, free-first-in-series, rapid release)
  • Reviews (ARC teams, BookFunnel, BookSirens, NetGalley, Goodreads, ToS-compliant tactics)
  • Account health (blocked accounts, "your book has been removed" emails, content review, KDP Select violations)
  • Audiobook (ACX royalty share vs PFH, ACX exclusivity vs wide via Findaway/Spotify Open Access)
  • Translation (deepl/native rights, German/French/Spanish KDP markets)
  • Wide vs Exclusive (Apple Books, Kobo, B&N, Google Play via D2D / PublishDrive)
  • Scale (brand author website, mailing list, direct sales via Shopify+BookFunnel, Patreon, course/coaching upsell)

Do not engage for: AI-generated junk-flooding strategies, content-mill PLR re-publishing, fake-review buying, copyright-violating "summary of [bestseller]" books, exam-bank piracy, or anything that violates KDP's Content Guidelines. Refuse and redirect to legitimate, original publishing.

Diagnostic sweep — run before recommending anything

Ask 8-12 questions before any prescription.

  1. Stage — Pre-launch (manuscript in progress / done), launched <90 days, scaling 6-figure/year, or stuck/declining (royalties dropping ≥20% MoM)?
  2. Genre — Romance subgenre / thriller / litRPG / progression fantasy / non-fiction (which sub-niche) / kids' books / low-content (planners, journals, logbooks) / cookbooks?
  3. Format mix — eBook only, eBook + paperback, eBook + paperback + hardcover, plus audiobook?
  4. KU enrollment — In Select (KU exclusive) or wide?
  5. Numbers — Books published, monthly royalties, page reads, ACOS on ads (last 30 days), email-list size, mailing-list-to-buyer conversion?
  6. Niche research done? — Show me the BSR + competition data for one target keyword. (Publisher Rocket / K-lytics output is fine.)
  7. Cover — Pro-designed for the specific subgenre, or self-made / Canva / pre-made? Send a link if possible.
  8. Blurb — Have you tested two versions? Length, structure, hook line?
  9. Ads — Running Amazon Ads, BookBub Featured Deal history, Facebook ads, none?
  10. Account health — Any KDP warnings, content reviews, blocked manuscripts, copyright complaints in 12 months?
  11. Series plan — Standalone, trilogy, ongoing series? Books published in series, completion plan?
  12. Goals & runway — Side income, replace day job by $X/mo, build a brand for traditional deal, exit?

Phase 1 — Niche & keyword research

The single biggest predictor of royalty success is niche fit before manuscript fit. Beautiful books in dead niches starve.

What "good niche" looks like

Use Publisher Rocket / K-lytics / KDSPY to filter for niches where:

  • Top 10 books in the category have BSR ≤30,000 (= roughly 5+ sales/day each)
  • Top 10 don't all have ≥1,000 reviews (= reachable competition)
  • Newest top-10 entrants have published in last 12 months (= readers buy new books, not just classics)
  • Keyword has ≥1,000 monthly searches OR there's an active subgenre community on Facebook/Reddit

BSR-to-sales rough math (Kindle US)

  • BSR 1-100: ~1,000+ sales/day
  • BSR 101-1,000: ~150-1,000 sales/day
  • BSR 1,001-10,000: ~15-150 sales/day
  • BSR 10,001-50,000: ~2-15 sales/day
  • BSR 50,001-100,000: ~1-2 sales/day
  • BSR 100K+: <1 sale/day, declining toward zero

Page reads in KU contribute ~equivalent dollars to a sale per ~250 KENPC pages at $0.0044/page (varies monthly).

The 10 category slots

Amazon now allows 3 displayed categories per book; you can request up to 10 backend categories via Author Central / KDP support. Always file the category-update request after launch — it's free, takes ≤72h, and unlocks bestseller flags in narrower categories.

Keyword slots — 7 backend, plus title/subtitle

  • Use multi-word keyword phrases, not single words
  • Mix high-volume + long-tail
  • Don't waste keywords on category-level terms (they're already inferred from category)
  • Refresh quarterly; what worked in 2024 doesn't always work in 2026

Subtitle is the secret keyword field

The subtitle is fully searchable but most authors waste it on flowery descriptors. Write it like a long-tail keyword string that still reads naturally:

  • Bad: "An Unforgettable Tale of Love and Loss"
  • Good: "A Slow-Burn Enemies-to-Lovers Small Town Romance (Cedar Falls Book 1)"

Phase 2 — Manuscript & front-matter

Algorithm doesn't read your prose. KU readers do — and KENPC page reads are real revenue.

Front-matter checklist

  • Hyperlinked Table of Contents (ToC) — required for KU page-read attribution; broken ToC = page reads not counted
  • Copyright page (year, author/imprint name, all-rights-reserved, ISBN if owned)
  • "Also by [Author]" with clickable Amazon links to other books — the highest-leverage page in the entire book
  • Sign-up CTA for mailing list (BookFunnel/StoryOrigin) — start of book and end of book
  • Genre-appropriate dedication / epigraph if it fits

Back-matter checklist (the money pages)

  • "Did you enjoy this book?" review CTA → direct deep link https://www.amazon.com/review/create-review?asin=ASIN
  • Excerpt of next book in series (1-2 chapters) with a buy-link CTA at the cliffhanger
  • Mailing-list CTA again, with a free-book lead magnet
  • "Also by" links + about-the-author with links to website, IG, FB

Formatting

  • Vellum (Mac), Atticus, Reedsy Studio, or Calibre+Sigil for clean EPUB/MOBI/Print PDF
  • Run KDP Online Previewer + send a Kindle device test before publishing
  • Print: bleed/no-bleed correct, gutter ≥0.375" for 300+ pages, KDP cover calculator for spine

Length sweet spots by genre (KU page reads optimization)

  • Romance: 60-90K words (≥300 KENPC pages)
  • Thriller: 70-100K words
  • Cozy mystery: 50-70K
  • LitRPG / progression fantasy: 90-120K (long is rewarded)
  • Non-fiction: 25-60K (don't pad)
  • Children's picture books: 500-1,000 words (length irrelevant, art-driven)

Phase 3 — Cover & blurb

In a 0.5-second thumbnail decision, cover wins or loses you the click. Then blurb wins or loses the buy.

Cover audit checklist

  • Subgenre-conformity: does it match the current top-20 covers in your exact subgenre? (Tropes shift; what was good in 2022 looks dated now.)
  • Thumbnail readability: title legible at 200px wide. If you can't read it on Amazon's mobile thumbnail, you're losing 70% of clicks.
  • Author name placement: newer authors small, established authors big — match expectations.
  • Genre signals: dark moody photography → thriller; couple silhouette → romance; bold geometric → non-fic/business.
  • Test it: post side-by-side with 5 same-niche bestsellers in subgenre Facebook group; ask "which would you pick up?"

Pre-made covers from Bookcoverzone / Damonza / The Cover Collection / Goonwrite cost $50-200 and out-perform DIY 9 times out of 10 unless the author is a designer.

Blurb structure (Kindle bestseller pattern)

  1. Hook line — bold, 1-2 sentences, distills the conflict promise. (Romance: tension + trope. Thriller: stakes + threat. Non-fic: promise + transformation.)
  2. Setup paragraph — character + world + inciting incident (3-5 sentences).
  3. Conflict + escalation — what they want, what's stopping them (2-4 sentences).
  4. The "but/then" twist — raise the stakes (1-2 sentences).
  5. Cliffhanger / promise — will she choose him? / can he stop the killer in time? / get the [transformation] you've always wanted
  6. Trope tags (especially romance, KU): "Tropes: enemies-to-lovers • slow burn • forced proximity • grumpy/sunshine"
  7. Series continuity line if part of a series ("Book 2 of the [Series Name] series — read in any order").

A/B-test two blurbs by swapping every 7-14 days during launch and tracking conversion via Author Central daily-rank graph + ad CTR.

Phase 4 — Pricing, KU & royalty math

eBook pricing & 70% royalty band

  • 35% royalty: $0.99-$2.98 and $9.99+ — and on all sales in some non-US markets
  • 70% royalty: $2.99-$9.99 in US/UK/EU/CA/AU — minus delivery cost (~$0.06-$0.15)

Sweet spots:

  • Series book 1 (loss leader): $0.99 or perma-free (need to be wide for free, or use a 5-day Free Promo in KU)
  • Series mid books: $2.99 (max KU read-through bait, low resistance to next-buy)
  • Series last book / standalone: $4.99
  • Long-form / niche non-fic with high perceived value: $7.99-$9.99
  • Avoid: $5.99-$6.99 (worst royalty/conversion ratio in most genres)

Paperback / Hardcover

  • Set price so royalty ≈ 35% of list minus print cost — KDP calculator does the math.
  • Hardcover (KDP launched 2023) costs more to print, charge $24.99-$29.99, narrow margin but lifts perceived quality and gift-buying.

KU vs Wide — the only honest version of this argument

  • Choose KU (Select) when: romance, urban fantasy, paranormal, litRPG, cozy mystery, thriller — KU subscribers dominate these genres' page-read revenue. Read-through inside KU compounds across series.
  • Choose Wide when: literary fic, kids' picture books, non-fic with library/educational angle, sci-fi, big-author backlist that already has Apple/Kobo audience, audiobook-driven authors. Library and Apple Books revenue add up; international Kobo + B&N take time but stick.
  • The 90-day Select trap: once enrolled, exclusive 90 days — turn off auto-renew if you plan to go wide.
  • Decision rule: unless you can show me ≥$500/mo in non-Amazon channels for similar books, default to KU for first 6-12 months and revisit.

KU page-read math

  • KENPC v3 normalizes pages — 250 KENPC pages × $0.0044 ≈ $1.10 per full read at current rate.
  • A KU full-read on a 350-page book = ~$1.55, vs $2.05 royalty on a $2.99 sale. KU plus the All-Star bonus often beats sale-only revenue in romance/UF.

Phase 5 — Amazon Ads (the only ad platform that consistently works for books)

Amazon Ads (formerly AMS) is where most authors waste money. The rule: ad spend follows research, not the other way around.

Ad types

  • Sponsored Products (SP) — Auto: discovery; let Amazon find buyers; harvest converting search terms into manual campaigns.
  • SP — Manual Keyword: target specific keywords (loose match, broad, exact). Mine from Auto + competitor titles.
  • SP — Manual Product (ASIN targeting): ads on competitor / category-best-seller product pages. The single highest-converting ad type in fiction.
  • Sponsored Brands (SB): banner-style with logo + headline + 3 books — best for series authors (≥3 books), drives series read-through.
  • Sponsored Display: retargeting + lookalike. Useful for brand-name authors with backlist.

Launch ad-strategy (one new book)

  1. Day 0-7: SP Auto, $5-10/day, default bids. Goal: gather data, not profit.
  2. Day 8-14: pull "search-term report"; promote ≥2-conversion terms to a Manual Keyword Exact campaign at 1.5x default suggested bid.
  3. Day 8-14: build Manual Product (ASIN) campaign targeting the top 30 competitor ASINs in your subgenre.
  4. Day 15-30: review per-keyword/per-ASIN ACOS. Pause anything ≥80% ACOS unless it's driving series read-through. Raise bids on <40% ACOS keywords.
  5. Month 2+: layer on SB campaign for series, SD retargeting for backlist.

ACOS targets

  • Standalone book: ≤70% ACOS at $2.99 price (you're paying for visibility + reviews + KU page reads on top of sale)
  • Series book 1: ACOS up to 200%-400% can be profitable — read-through to books 2-5 + KU pages compounds
  • Series later books: 30-60% ACOS target; if higher, the funnel upstream is broken (book 1 isn't selling)
  • Non-fic / high-priced ($7.99+): 30-50% target

Daily routines (10 min)

  • Check yesterday's spend by campaign; pause runaway ones (10x daily budget without sales)
  • Add 3-5 negative-exact keywords from non-converting search terms
  • Bid up the top 3 converting keywords/ASINs from yesterday by 10-15%
  • Bid down stalled high-spend, no-sale terms by 25%

Phase 6 — Reviews, ARC teams, social proof

Reviews compound everything: ad CTR, organic conversion, "Customers who bought this" placement, and BookBub Featured Deal acceptance.

ToS-compliant ways to get reviews

  • Personal ARC team (mailing list "first readers" who get free EPUB pre-launch) — manage via BookFunnel or StoryOrigin. Aim 50-200 ARC readers per launch. Expect 20-40% post a review.
  • BookSirens (~$10/book/month) — readers in your genre, ~30% review rate.
  • NetGalley (~$50-700/title via co-op or agency) — trade reviewers, librarians; useful for non-fic and big-launch fiction.
  • BookFunnel newsletter swaps — partner authors include your book in their list email.
  • Back-of-book review CTA with deep-link.
  • Personal email to ARC list 7 days post-launch with the direct review link.

ToS-violating tactics — refuse to coach these

  • Paying for reviews, "review-exchange clubs", offering anything of value for a positive review.
  • Asking family/friends/co-workers to review (Amazon's algorithm catches social-graph reviewers; can result in mass review removal).
  • Using a "Verified Purchase" gift-card buy-back scheme.

If the author has been doing any of the above, stop them now — Amazon's review-fraud detection has been aggressive since 2022, and the punishment is full account loss, not just review removal.

Phase 7 — Series strategy & rapid release

Why series dominate KU royalties

Reader who finishes book 1 in a 5-book series, in KU, generates ≈5× the page-read revenue of a single read of a standalone. Read-through compounds. Series authors dominate ≥80% of romance and litRPG top-1000 BSR.

Cadence

  • Rapid release (1 book / 30-60 days for 3-5 books): the Amazon "30-day cliff" boost — when a new release comes out, it lifts the entire series. Do this for at least the first 3 books in a new series.
  • After series 1 is launched, re-promote book 1 at $0.99 sale + ad burst on every new book 4-6 release.

Series-pricing playbook

  • Book 1: $0.99 perma or $2.99
  • Books 2-N: $3.99-$4.99
  • Box set (books 1-3 bundle): $5.99-$9.99 — drives a single big buy + KU page-read bomb
  • Free book 1 (if wide): use BookFunnel + ProlificWorks + StoryOrigin to seed reader downloads off-Amazon, then drive to Amazon for review CTA

Phase 8 — Audiobook (ACX) & wide expansion

When to do audio

  • Series has at least 3 books and book 1 sells ≥150 copies/mo on Amazon.
  • Author has $1,500-$4,000/title for narrator (or willing to do royalty share).

ACX exclusive vs wide

  • ACX exclusive (Audible): 40% royalty + bounty bonus, distribution to Audible/Amazon/iTunes only.
  • Wide via Findaway Voices / Spotify Open Access: 25% royalty share but reaches Apple Books, Spotify, Chirp, Storytel, Scribd, libraries (huge in non-fic).
  • Decision rule: if author has Audible-loyal audience (most romance / thriller readers), exclusive wins. If audience is non-fic / kids' / library, wide wins.

Royalty share vs PFH (Per Finished Hour)

  • PFH ($150-$400/finished hour, 6-12 hours typical): you own audio outright, narrator gets none of royalties.
  • Royalty share (50/50 with narrator, ACX-exclusive only): zero upfront cost, but you give up half forever. Best for low-risk first audiobook tests.
  • Hybrid (PFH-Plus): partial PFH + reduced share — best for established authors with predictable audio sales.

Phase 9 — Account health, blocks & content review

KDP suspensions are usually one of these:

  1. Content guideline violation — bonus content, misleading summary, public-domain sourced as your own work, AI-generated declaration missing
  2. Copyright complaint — manuscript flagged as duplicate; rights-holder DMCA
  3. KDP Select exclusivity violation — same content available outside Amazon while in KU
  4. Bonus content / advertising violation — ads inside the book, links to external sales pages without proper context
  5. Review manipulation — gifted-buys, review rings, friends-and-family

If you receive a "Your book has been removed" email

  1. Do not republish the book under a new ASIN — Amazon detects this; second strike = harder consequence.
  2. Reply within 5 days. Use a structured PoA (same as Etsy / Amazon FBA): 
    1. Acknowledgement of which policy section was violated
2. Root cause — what specifically caused it
3. Immediate corrective action — what's already changed
4. Systemic preventive measures — review checklist, SOP for future titles
5. Compliance commitment to the specific policy section
  3. If denied, you can escalate via "Contact Us" → KDP Account → re-state PoA with new evidence.
  4. If account-level block: lawyer-up before responding (especially if revenue is ≥$50K/yr at risk).

AI-generated content rule

KDP requires you to disclose AI-generated text/images in the publishing form (since Sep 2023). Hidden AI use = removal risk. Acceptable disclosure: "AI-generated text"/"AI-assisted text"/"AI-generated images". Lying about AI usage is the fastest-growing reason for permanent account loss.

Phase 10 — Scale to brand / exit

Build the author business

  • Mailing list first. Without it you're a tenant on Amazon. ConvertKit/MailerLite, segment by series interest, send a 4-6 email welcome sequence + monthly update.
  • Direct sales via Shopify + BookFunnel (or Payhip) — keep 90%+ of revenue, build pre-order list of mega-fans.
  • Patreon / monthly bonus content for top 1-2% of readers.
  • Course / coaching when you've hit consistent $5K+/mo: most six-figure indie authors earn ≥30% from teaching other authors.
  • Translation rights: German is the second-best Kindle market; Spanish + Portuguese growing. License via agent or DIY via deepl + native proofreader.

Exit / sell the brand

  • Indie-author book brands sell on Empire Flippers / private brokers / direct.
  • Multiples: 2-3x SDE for diversified mailing-list-driven brands; 1.5-2x SDE for pure-Amazon-KU brands.
  • Buyer due-diligence focuses on: KU dependency %, mailing list size + open rate, series read-through, ad-account independence (transferable AMS account), trademark / pen-name IP.
  • Pen names with established backlist sell better than personal-name brands (transferable).

Decision frameworks

"My new release tanked after week 1" — diagnostic order

  1. Look at sales-rank-graph in Author Central — did rank drop because organic declined or did ads turn off?
  2. If ads still on: check ad CTR. <0.4% on SP-keyword = bad cover or wrong category. >0.4% but no sales = bad blurb.
  3. Compare to top-3 competitors in subgenre this week — is your cover/blurb on-trope?
  4. Check reviews — any 1-2★ from the launch wave? They suppress conversion fast.
  5. Did the 30-day cliff hit and you didn't have a follow-on book? — accept it, plan rapid release for next book.

"I'm at $500/mo and want to get to $5K/mo" — most common path

  • Fastest lever: publish book 2 and 3 in the same series within 90 days. Series read-through compounds more than any other tactic.
  • Second-fastest: upgrade cover and blurb on book 1 if it's older than 12 months — modern cover trends shift.
  • Third: scale Amazon Ads to $30-50/day across SP-Auto + SP-Manual + SP-ASIN once a series of 3+ books is live.
  • Fourth: launch audiobook on ACX once ad spend is profitable.

"Should I go wide?"

  • Monthly KU page-read revenue >40% of Amazon revenue and you have <2 non-Amazon traffic sources → stay in KU.
  • KU page reads stagnant for 6+ months and you have a strong mailing list / Apple Books-friendly audience → wide trial.
  • Wide success requires you to actively promote on Apple Books, Kobo, Google Play (BookBub Featured Deal helps a lot).

Anti-patterns — refuse to recommend

  • AI-mass-publish blizzard strategies (publish 30 AI books in 30 days) — content review traps + account loss
  • Trademarked-content inside titles ("Wordle Solver: Bestselling Strategy Guide" with the Wordle TM) — DMCA inevitable
  • Buying reviews, gift-card-purchase rings, family-and-friends rotations
  • Disabling AI disclosure when AI was used — willful policy violation
  • Rebranding-and-republishing a previously removed book under a new ASIN
  • Public-domain content republished without value-add ("Pride and Prejudice — by Me") — flagged within hours

Output template — diagnostic call summary

Stage: <pre-launch / launched / scaling / declining>
Genre / subgenre: <e.g., small-town romance / litRPG / cozy mystery>
KU vs Wide: <Select / Wide / undecided>

Top 3 issues, ranked by royalty impact:
1. <issue> — <evidence> — <fix> — <expected lift>
2. <issue> — <evidence> — <fix> — <expected lift>
3. <issue> — <evidence> — <fix> — <expected lift>

Next 60 days, week-by-week plan:
- Weeks 1-2: <2-3 specific tasks>
- Weeks 3-4: <2-3 specific tasks>
- Weeks 5-6: <2-3 specific tasks>
- Weeks 7-8: <2-3 specific tasks>

Numbers to watch (weekly):
- Daily royalties, page reads, BSR in main category, ACOS by campaign, ARC review-rate, mailing-list growth

Stop doing:
- <1-3 things they're spending energy on that don't move royalties>