KDP categories · Top KDP authors
Theory (Economics, Books): Amazon KDP category data
Amazon Books Best Sellers data for Theory (Economics, Books), updated Nov 2, 2026: median price $13.94, median 762 reviews, average rating 4.5 and a KDPTop opportunity score of 29/100 (highly competitive).
| Price range (middle 50%) | $11.30 – $20.37 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 7% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 27% of the parent category Economics (2,858), one of the easier corners under it.
- Its review barrier is higher than in 82% of Books categories: the median best seller has 762 reviews, so new books need time to build up.
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 Intelligent Investor Third Edition: The Timeless Guide to Value Investing and Financial Wisdom for a Volatile Market
- List rank#3
- Price$13.94
- Rating4.7
- Reviews1,228
-
Basic Economics: A Common Sense Guide to the Economy
- List rank#4
- Price$24.91
- Rating4.9
- Reviews5,235
-
Why Nations Fail: The Origins of Power, Prosperity, and Poverty
- List rank#5
- Price$10.92
- Rating4.5
- Reviews10,977
-
Profit First: Transform Your Business from a Cash-Eating Monster to a Money-Making Machine (Entrepreneurship Simplified)
- List rank#6
- Price$13.62
- Rating4.8
- Reviews9,294
-
The Deficit Myth: Modern Monetary Theory and the Birth of the People's Economy
by Stephanie Kelton
- List rank#7
- Price$1.99
- Rating4.5
- Reviews4,187
-
The Road to Serfdom: Text and Documents--The Definitive Edition (The Collected Works of F. A. Hayek, Volume 2)
by F. A. Hayek
- List rank#8
- Price$10.31
- Rating4.7
- Reviews3,115
-
Capitalism and Freedom
- List rank#9
- Price$10.91
- Rating4.6
- Reviews3,002
-
Baby Steps Millionaires: How Ordinary People Built Extraordinary Wealth - and How You Can Too
by Dave Ramsey
- List rank#10
- Price$12.99
- Rating4.6
- Reviews3,961
Same niche in Kindle eBooks: Theory
FAQ
Is Theory a good niche for Amazon KDP?
Its KDPTop opportunity score is 29/100, which makes it highly competitive. The median best seller has 762 reviews and sells for $13.94.
How many reviews do you need to rank in Theory?
The median best seller has 762 reviews, and 15% of them have fewer than 100.
What do Theory best sellers cost?
The median price is $13.94; half of the best sellers are priced between $11.30 and $20.37.
Can new books break into Theory?
7% 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.