KDP categories · Top KDP authors
Reference (Philosophy, Books): Amazon KDP category data
Amazon Books Best Sellers data for Reference (Philosophy, Books), updated Nov 3, 2026: median price $15.00, median 127 reviews, average rating 4.5 and a KDPTop opportunity score of 30/100 (highly competitive).
| Price range (middle 50%) | $11.98 – $19.09 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 2% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 3% of the parent category Philosophy (4,240), one of the easier corners under it.
- Only 2% of its best sellers are under 90 days old, fewer than in 93% of Books categories: established titles hold the list.
Top 10 Reference best sellers
-
Master Detachment & Watch Everything Chase You: The Secret to Effortless Attraction, Abundance, and Inner Freedom
by Amelia Vazquez
- List rank#1
- Price$7.99
- Rating4.5
- Reviews370
-
-
The Fallacy Detective: Thirty-Eight Lessons on How to Recognize Bad Reasoning
by Nathaniel Bluedorn
- List rank#3
- Price$22.47
- Rating4.7
- Reviews2,079
-
The Prince (Deluxe Hardbound Edition) (Fingerprint Classics)
- List rank#4
- Price$12.99
- Rating4.4
- Reviews8,332
-
Shop Class as Soulcraft: An Inquiry into the Value of Work
by Matthew B. Crawford
- List rank#5
- Price$9.99
- Rating4.3
- Reviews1,814
-
Meditations
- List rank#6
- Price$6.51
- Rating4.6
- Reviews5,984
-
The Art of Detachment: Finding Strength in Presence, Calmness, and Detachment
by Shubham Kumar Singh
- List rank#7
- Price$12.99
- Rating4.7
- Reviews585
-
-
Ethics
by Benedict de Spinoza
- List rank#9
- Price$14.91
- Rating4.5
- Reviews882
-
Take Nothing Personally: How to Stop Reacting, Focus on Yourself, and Live With Ease
by Shubham Kumar Singh
- List rank#10
- Price$15.99
- Rating4.5
- Reviews124
Same niche in Kindle eBooks: Reference
FAQ
Is Reference a good niche for Amazon KDP?
Its KDPTop opportunity score is 30/100, which makes it highly competitive. The median best seller has 127 reviews and sells for $15.00.
How many reviews do you need to rank in Reference?
The median best seller has 127 reviews, and 28% of them have fewer than 100.
What do Reference best sellers cost?
The median price is $15.00; half of the best sellers are priced between $11.98 and $19.09.
Can new books break into Reference?
2% 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.