Research · Review barrier
How Many Reviews Does It Take to Rank on Amazon KDP? Data from 450,681 Best Sellers (November 2026)
How many reviews does it take to rank on Amazon KDP? A comparison of 450,681 books by store, product type, rank tier and category in November 2026.
Key findings
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- Amazon.com Best Sellers lists included 450,681 unique books across Print books and Kindle eBooks during the October 27 to November 8, 2026 data period. The median review count was 55 for Print books and 62 for Kindle eBooks.
- Books with fewer than 10 reviews accounted for 25.0% of Print books and 23.7% of Kindle eBooks on Amazon.com Best Sellers in November 2026.
- Median review counts on Amazon.com Best Sellers rose with rank in November 2026: 624 at #1, 197 at #2-10, 96 at #11-25, 58 at #26-50 and 37 at #51-100.
- Notebook had the lowest median review count among the measured product types on Amazon.com Best Sellers in November 2026, at 7 reviews. Biography & memoir had the highest, at 155 reviews.
- Among 23,188 breakout books published during the October 10 to November 8, 2026 report window, the median review count at first reaching an Amazon.com Best Sellers list was 0. A total of 80.7% had fewer than 10 reviews.
How many reviews Best Sellers books have
The median review count across 450,681 unique books on Amazon.com Best Sellers was 55 for Print books and 62 for Kindle eBooks. The data covers the 13-day period from October 27 to November 8, 2026. Print books had a slightly lower median review count, though the difference between formats was modest.
Books with fewer than 10 reviews made up 25.0% of Print books and 23.7% of Kindle eBooks. The share with fewer than 50 reviews was 48.3% for Print books and 46.5% for Kindle eBooks. Existing Best Sellers positions in both formats were therefore accessible to a substantial number of books with relatively few reviews. This was particularly evident outside the highest-ranking positions.
| Store | Books | Median reviews | Under 10 | Under 50 | Under 100 | Median rating |
|---|---|---|---|---|---|---|
| Print books | 256,410 | 55 | 25.0% | 48.3% | 59.0% | 4.6 |
| Kindle eBooks | 194,271 | 62 | 23.7% | 46.5% | 57.4% | 4.6 |
Do higher ranks need more reviews?
Median review counts varied considerably by rank. Books at #51-100 had a median of 37 reviews, compared with 58 at #26-50, 96 at #11-25, 197 at #2-10 and 624 at #1. At #51-100, 29.0% of books had fewer than 10 reviews. At #1, that share fell to 6.5%. Publishers assessing entry requirements should use the figures for their target rank rather than treating the review count of a category leader as the benchmark for every position.
| Rank in category | Books | Median reviews | Under 10 | Under 50 | Under 100 | Median rating |
|---|---|---|---|---|---|---|
| #1 | 5,855 | 624 | 6.5% | 17.7% | 25.3% | 4.6 |
| #2-10 | 45,666 | 197 | 13.7% | 30.1% | 39.6% | 4.6 |
| #11-25 | 71,831 | 96 | 19.4% | 40.1% | 50.6% | 4.6 |
| #26-50 | 114,172 | 58 | 24.2% | 47.6% | 58.6% | 4.6 |
| #51-100 | 213,157 | 37 | 29.0% | 54.6% | 65.6% | 4.6 |
Review barrier by product type
Notebook had the lowest median review count at 7, with 57.3% of listed books below 10 reviews. Log book followed at 9, while Calendar and Planner each had a median of 11. Kids coloring had a median of 12, and Study guide & reference had a median of 21 across 48,037 books. These figures show that relatively low review counts are common among listed books in these product types. They describe existing listings, however, and do not guarantee similar results for new launches.
Biography & memoir had the highest median at 155 reviews. Flash cards followed at 134, Chapter book at 129 and Comics & graphic novels at 120. Self-help had a median of 109, while How to draw had 105. Publishers entering these formats should account for the higher review counts among existing Best Sellers, particularly when aiming for competitive list positions.
| Product type | Books | Median reviews | Under 10 | Under 50 | Under 100 | Median rating |
|---|---|---|---|---|---|---|
| Notebook | 1,305 | 7 | 57.3% | 82.1% | 88.7% | 4.8 |
| Log book | 2,545 | 9 | 51.0% | 79.8% | 89.2% | 4.6 |
| Calendar | 1,880 | 11 | 46.9% | 72.4% | 83.0% | 4.8 |
| Planner | 681 | 11 | 47.1% | 74.4% | 83.4% | 4.6 |
| Kids coloring | 1,266 | 12 | 47.1% | 72.0% | 80.0% | 4.8 |
| Word search | 616 | 16 | 42.4% | 68.5% | 78.2% | 4.8 |
| Study guide & reference | 48,037 | 21 | 35.3% | 65.8% | 77.5% | 4.6 |
| Art & photography | 10,831 | 25 | 33.4% | 62.3% | 74.0% | 4.7 |
| Adult coloring | 2,781 | 25 | 33.6% | 60.6% | 70.5% | 4.7 |
| Journal | 1,847 | 26 | 35.1% | 60.4% | 69.6% | 4.7 |
| How-to guide | 74,938 | 27 | 33.7% | 60.8% | 72.6% | 4.5 |
| Sudoku & logic | 908 | 29 | 30.3% | 60.4% | 72.1% | 4.6 |
| Activity book | 1,525 | 30 | 31.3% | 60.1% | 70.3% | 4.7 |
| Kids nonfiction | 11,637 | 35 | 29.8% | 55.6% | 67.4% | 4.7 |
| Games & trivia | 2,803 | 46 | 23.8% | 51.6% | 63.3% | 4.6 |
| Nonfiction | 81,377 | 46 | 26.4% | 51.1% | 62.1% | 4.5 |
| Poetry | 4,675 | 50 | 26.4% | 49.8% | 61.8% | 4.7 |
| Tracing | 508 | 54 | 24.4% | 48.4% | 60.8% | 4.7 |
| Workbook | 4,748 | 57 | 24.5% | 47.4% | 59.5% | 4.6 |
| Seek and find | 434 | 74 | 18.4% | 41.5% | 54.6% | 4.7 |
| Picture book | 14,692 | 76 | 21.1% | 43.3% | 54.1% | 4.8 |
| Cookbook | 13,451 | 79 | 18.9% | 41.4% | 54.2% | 4.6 |
| Christian & faith | 21,723 | 85 | 20.3% | 41.9% | 52.9% | 4.7 |
| Early reader | 2,675 | 101 | 20.5% | 39.6% | 49.6% | 4.7 |
| How to draw | 1,188 | 105 | 15.7% | 38.0% | 49.1% | 4.6 |
| Self-help | 23,691 | 109 | 15.8% | 37.0% | 48.3% | 4.6 |
| Comics & graphic novels | 11,869 | 120 | 15.0% | 35.4% | 46.8% | 4.7 |
| Chapter book | 4,798 | 129 | 14.1% | 33.4% | 45.1% | 4.7 |
| Flash cards | 688 | 134 | 17.3% | 35.3% | 46.1% | 4.7 |
| Biography & memoir | 26,197 | 155 | 14.8% | 32.9% | 43.2% | 4.6 |
Categories where low-review books rank
True Crime in Print books had a median of 0 reviews. A total of 76.0% of listed books had fewer than 100 reviews, estimated median daily sales were 13.5 units and the opportunity score was 66. Public Affairs & Policy also had a median of 0 reviews, with estimated median daily sales of 9.3 units and an opportunity score of 60. Public Affairs & Administration had a median of 0 reviews and an opportunity score of 66, alongside estimated median daily sales of 7.1 units. These categories merit further research because their low review counts coincide with measurable estimated sales. Dogs and Foreign Language also had median review counts of 1, but estimated median daily sales were just 0.7 and 0.6 units respectively.
The highest review barriers appeared in established fiction categories. Thrillers & Suspense in Print books had a median of 61,592 reviews and estimated median daily sales of 243 units. Psychological Thrillers had a median of 57,675 reviews and an opportunity score of 10. Psychological in Kindle eBooks had a median of 46,468 reviews and an opportunity score of 10. Fantasy in Print books had a median of 43,922 reviews and estimated median daily sales of 193 units. These categories have substantial estimated sales, but the review counts suggest that publishers without an established audience would face considerable competition.
Lowest barrier among categories with sales
| Category | Store | Median reviews | Under 100 reviews | Median est. daily sales | Opportunity score |
|---|---|---|---|---|---|
| True Crime | Print books | 0 | 76.0% | 13.5 | 66 |
| Public Affairs & Policy | Print books | 0 | 58.0% | 9.3 | 60 |
| Public Affairs & Administration | Print books | 0 | 75.3% | 7.1 | 66 |
| Dogs | Print books | 1 | 96.0% | 0.7 | 45 |
| Foreign Language | Print books | 1 | 95.0% | 0.6 | 43 |
| Nature | Print books | 1 | 87.0% | 0.45 | 40 |
| Circuits | Kindle eBooks | 2 | 80.0% | 0.4 | 33 |
| Web Development | Kindle eBooks | 2 | 86.0% | 0.4 | 36 |
| Creation | Kindle eBooks | 2 | 85.7% | 0.4 | 30 |
| Saints & Sainthood | Print books | 2 | 93.6% | 0.4 | 38 |
| Rice Cookers | Print books | 3 | 77.8% | 0.4 | 33 |
| Office Equipment & Supplies | Print books | 4 | 88.0% | 0.5 | 36 |
| Informática, Internet y Medios Digitales | Kindle eBooks | 4 | 76.0% | 0.4 | 32 |
| Collections, Catalogues & Exhibitions | Kindle eBooks | 4 | 85.0% | 0.4 | 31 |
| Sufism | Kindle eBooks | 4 | 78.0% | 0.4 | 33 |
Highest review barrier
| Category | Store | Median reviews | Under 100 reviews | Median est. daily sales | Opportunity score |
|---|---|---|---|---|---|
| Thrillers & Suspense | Print books | 61,592 | 6.0% | 243 | 16 |
| Psychological Thrillers | Print books | 57,675 | 5.0% | 145 | 10 |
| Psychological | Kindle eBooks | 46,468 | 3.0% | 128 | 10 |
| Fantasy | Print books | 43,922 | 8.0% | 193 | 20 |
| Suspense | Print books | 42,244 | 3.0% | 128 | 17 |
| Psychological | Print books | 38,808 | 5.0% | 71 | 12 |
| Genre Fiction | Print books | 38,514 | 3.0% | 321 | 18 |
| Suspense | Kindle eBooks | 38,260 | 3.0% | 149 | 11 |
| Romantic | Print books | 37,996 | 9.0% | 165 | 17 |
| Thrillers | Kindle eBooks | 37,853 | 4.0% | 176 | 12 |
Reviews at breakout
The 23,188 breakout books published during October 10 to November 8, 2026 had a median of 0 reviews when they first appeared on an Amazon.com Best Sellers list. A total of 80.7% had fewer than 10 reviews, and 92.2% had fewer than 50. The figures show that new books can reach a Best Sellers list before building a substantial review history. They do not show whether those books maintained their positions or generated sustained sales.
| Metric | Value |
|---|---|
| Breakout books in the period | 23,188 |
| Median reviews at breakout | 0 |
| Under 10 reviews at breakout | 80.7% |
| Under 50 reviews at breakout | 92.2% |
What it means for a new book
Publishers seeking lower review barriers should start by examining Notebook, Log book, Calendar and Planner formats. They can then compare individual categories using both review counts and estimated sales. True Crime and Public Affairs & Policy in Print books are useful starting points: both had a median review count of 0, while estimated median daily sales were 13.5 and 9.3 units. Opportunity scores provide another way to narrow the shortlist. The final choice should also reflect the publisher's subject expertise and ability to produce a competitive book.
Established fiction categories such as Thrillers & Suspense and Psychological Thrillers have much higher measured review barriers. New publishers may find better prospects in a narrower niche or a different category than by competing directly with established leaders. These figures represent snapshots of existing Best Sellers lists. They are not minimum review requirements or forecasts. Breakout results show that many new books reached a list with fewer than 10 reviews, but they do not reveal how many books failed to rank, how long breakout books stayed listed or how profitable those launches were. Estimated sales are calculated from sales rank and should be treated as estimates rather than verified transactions.
FAQ
How many reviews does a book need to rank on Amazon KDP?
The median was 55 reviews for Print books and 62 for Kindle eBooks on Amazon.com Best Sellers during October 27 to November 8, 2026. Books can rank with considerably fewer: 25.0% of Print books and 23.7% of Kindle eBooks had fewer than 10 reviews.
Can a new KDP book rank with zero reviews?
Yes. Among 23,188 breakout books published during October 10 to November 8, 2026, the median review count when they first reached a Best Sellers list was 0. A total of 80.7% had fewer than 10 reviews.
Which KDP book types have the lowest review requirements?
Notebook had the lowest median at 7 reviews, followed by Log book at 9. Calendar and Planner each had a median of 11 reviews, while Kids coloring had 12.
Which Amazon KDP categories have low review competition and sales?
True Crime in Print books had a median of 0 reviews, estimated median daily sales of 13.5 units and an opportunity score of 66. Public Affairs & Policy also had a median of 0 reviews, estimated median daily sales of 9.3 units and an opportunity score of 60.
Method and limits
The report covers the unique books on all Amazon.com Best Sellers lists on 2026-11-08, with the review count shown on the list; rank tiers use each book's best rank in any category that day. The category comparison uses categories below the top level with at least 40 fully parsed books that day; "with sales" means the category's median estimated daily sales are at least the median across all categories. Breakout books' reviews are counted when the report was made.
List data comes from KDPTop's daily crawl of every Amazon.com Books and Kindle Best Sellers and New Releases list; book details come from the list cards, book pages and Keepa; search volumes come from a third-party keyword tool and are estimates. Adult content categories are excluded.
Limits: lists reflect rank, not actual sales, and every sales figure is estimated from rank; books KDPTop has not seen are not counted.
Definitions used in this report
- Review barrier
- Unique Best Sellers books
- Breakout book
- Opportunity score
- Estimated sales
- Median and quartiles
Data sources, definitions and corrections policy: see the methodology →
Version history
- v1 · · First published
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Cite this report
KDPTop Research (2026). How Many Reviews Does It Take to Rank on Amazon KDP? Data from 450,681 Best Sellers (November 2026). Version 1, 2026-11-09. https://kdptop.com/research/reviews/reviews-to-rank-on-kdp/