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Reference (Political Science, Books): Amazon KDP category data
Amazon Books Best Sellers data for Reference (Political Science, Books), updated Nov 2, 2026: median price $16.98, median 66 reviews, average rating 4.6 and a KDPTop opportunity score of 32/100 (highly competitive).
| Price range (middle 50%) | $11.82 – $28.55 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 6% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 6% of the parent category Political Science (1,208), one of the easier corners under it.
- Prices spread wide: the middle half runs from $11.82 to $28.55, so budget editions and premium or boxed sets sell side by side.
Top 10 Reference best sellers
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The Constitution of the United States of America: The Declaration of Independence, The Bill of Rights
- List rank#1
- Price$9.99
- Rating4.8
- Reviews6,921
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Declaration of Independence, Constitution of the United States, Bill of Rights and All Amendments: Original Text and Modern English Paraphrase
by Founding Fathers
- List rank#2
- Price$9.99
- Rating4.7
- Reviews172
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The CIA World Factbook 2026-2027
by Central Intelligence Agency
- List rank#5
- Price$22.27
- Rating4.6
- Reviews95
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The Occupation of Iraq: Winning the War, Losing the Peace
by Ali A. Allawi
- List rank#7
- Price$2.99
- Rating4.2
- Reviews49
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The Art of War: A Graphic Novel (Graphic Classics)
by Sun Tzu
- List rank#9
- Price$14.84
- Rating4.8
- Reviews1,315
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Constitution of the United States (Books of American Wisdom)
- List rank#10
- Price$6.12
- Rating4.8
- Reviews6,436
FAQ
Is Reference a good niche for Amazon KDP?
Its KDPTop opportunity score is 32/100, which makes it highly competitive. The median best seller has 66 reviews and sells for $16.98.
How many reviews do you need to rank in Reference?
The median best seller has 66 reviews, and 62% of them have fewer than 100.
What do Reference best sellers cost?
The median price is $16.98; half of the best sellers are priced between $11.82 and $28.55.
Can new books break into Reference?
6% 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.