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Reference (Antiques & Collectibles, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Reference (Antiques & Collectibles, Kindle eBooks), updated Nov 1, 2026: median price $9.95, median 27 reviews, average rating 4.4 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $5.99 – $9.99 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 12% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 14% of the parent category Antiques & Collectibles (196), one of the easier corners under it.
- The same niche in Books scores 34, 13 points higher than here; worth checking both.
Top 10 Reference best sellers
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Treadle Sewing Machines: Clean and Use an Iron Lady
by Donna Kohler
- List rank#1
- Price$8.95
- Rating4.7
- Reviews1,235
-
![Gun Value Bible: [3 in 1] Identification, Grading, and Valuation for Modern and Collectibl book cover by Thomas Whitmor](https://images-na.ssl-images-amazon.com/images/I/81f1xifrYxL._UX300__PJkp-sticker-v1,TopRight,0,-50_AC_UL300_SR300,200_.jpg)
Gun Value Bible: [3 in 1] Identification, Grading, and Valuation for Modern and Collectible Firearms
by Thomas Whitmor
- List rank#2
- Price$9.99
- Rating4.4
- Reviews33
-
The Vintage Typewriter Restoration Manual: A Practical Guide to Cleaning, Repairing, and Refurbishing Mid-Century Manual Typewriters
by Owen Drexler
- List rank#3
- Price$3.99
- Rating5.0
- Reviews1
-
The Tobacconist Handbook: An Essential Guide to Cigars & Pipes
by Jorge Armenteros
- List rank#4
- Price$14.99
- Rating4.6
- Reviews306
-
The Glow That Won't Go Out: The Complete Collector's Guide to Vintage Holiday Blow Molds
by Curtiss Wayne Andrews
- List rank#5
- Price$9.99
- Rating4.0
- Reviews7
-
Looking at Jewelry: A Guide to Terms, Styles, and Techniques
by Susanne Gänsicke
- List rank#6
- Price$13.99
- Rating4.6
- Reviews137
-
The Ultimate Guide to Sea Glass: Finding, Collecting, Identifying, and Using the Ocean?s Most Beautiful Stones
by Mary Beth Beuke
- List rank#7
- Price$19.99
- Rating4.8
- Reviews946
-
The Cut of Women's Clothes, 1600-1930
by Norah Waugh
- List rank#8
- Price$3.99
- Rating4.5
- Reviews144
-
The Ultimate Bible of Rare and Error Pennies : Embark on a Treasure Hunt For Pennies Worth More Than $1,000 - Some Valued Over $1,000,000
by Sam Sommer MBA
- List rank#9
- Price$9.95
- Rating4.0
- Reviews9
-
Watch Repair for Beginners: An Illustrated How-To Guide for the Beginner Watch Repairer
by Harold C. Kelly
- List rank#10
- Price$8.99
- Rating4.2
- Reviews952
Same niche in Books: Antiques Care & Reference
FAQ
Is Reference a good niche for Amazon KDP?
Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 27 reviews and sells for $9.95.
How many reviews do you need to rank in Reference?
The median best seller has 27 reviews, and 71% of them have fewer than 100.
What do Reference best sellers cost?
The median price is $9.95; half of the best sellers are priced between $5.99 and $9.99.
Can new books break into Reference?
12% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.