KDP categories · Top KDP authors
Theory (Economics, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Theory (Economics, Kindle eBooks), updated Nov 2, 2026: median price $9.87, median 272 reviews, average rating 4.5 and a KDPTop opportunity score of 27/100 (highly competitive).
| Price range (middle 50%) | $2.99 – $14.99 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 10% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 30% of the parent category Economics (924), one of the easier corners under it.
- Its review barrier is higher than in 72% of Kindle eBooks categories: the median best seller has 272 reviews, so new books need time to build up.
- Prices spread wide: the middle half runs from $2.99 to $14.99, so budget editions and premium or boxed sets sell side by side.
Top 10 Theory best sellers
-
A Conflict of Visions: Ideological Origins of Political Struggles
- List rank#1
- Price$1.99
- Rating4.8
- Reviews1,910
-
What the Dog Saw: And Other Adventures
- List rank#2
- Price$1.99
- Rating4.4
- Reviews3,871
-
The Deficit Myth: Modern Monetary Theory and the Birth of the People's Economy
by Stephanie Kelton
- List rank#3
- Price$1.99
- Rating4.5
- Reviews4,187
-
Capitalism and Freedom
- List rank#4
- Price$10.91
- Rating4.6
- Reviews3,002
-
The Intelligent Investor Third Edition: The Timeless Guide to Value Investing and Financial Wisdom for a Volatile Market
- List rank#5
- Price$16.99
- Rating4.7
- Reviews1,228
-
-
The Fatal Conceit: The Errors of Socialism (The Collected Works of F. A. Hayek Book 1) (Volume 1)
by F. A. Hayek
- List rank#7
- Price$1.99
- Rating4.6
- Reviews599
-
The Model Thinker: What You Need to Know to Make Data Work for You
- List rank#8
- Price$1.99
- Rating4.5
- Reviews574
-
Hayek's Bastards: Race, Gold, IQ, and the Capitalism of the Far Right (Near Futures Book 9)
- List rank#9
- Price$14.75
- Rating4.5
- Reviews58
-
The Last Economy: A Guide to the Age of Intelligent Economics
by Emad Mostaque
- List rank#10
- Price$0.99
- Rating4.3
- Reviews384
Same niche in Books: Theory
FAQ
Is Theory a good niche for Amazon KDP?
Its KDPTop opportunity score is 27/100, which makes it highly competitive. The median best seller has 272 reviews and sells for $9.87.
How many reviews do you need to rank in Theory?
The median best seller has 272 reviews, and 35% of them have fewer than 100.
What do Theory best sellers cost?
The median price is $9.87; half of the best sellers are priced between $2.99 and $14.99.
Can new books break into Theory?
10% 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.