KDP categories · Top KDP authors
Interest (Economics, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Interest (Economics, Kindle eBooks), updated Nov 3, 2026: median price $6.99, median 17 reviews, average rating 4.4 and a KDPTop opportunity score of 19/100 (highly competitive).
| Price range (middle 50%) | $2.99 – $9.99 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 5% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 2% of the parent category Economics (924), one of the easier corners under it.
- Only 5% of its best sellers are under 90 days old, fewer than in 76% of Kindle eBooks categories: established titles hold the list.
- Its review barrier is lower than in 75% of Kindle eBooks categories: the median best seller has only 17 reviews, so new books can chart with few.
Top 10 Interest best sellers
-
Rich As F*ck: More Money Than You Know What to Do With
by Amanda Frances
- List rank#1
- Price$6.99
- Rating4.7
- Reviews3,970
-
The Prosperity Bible: The Greatest Writings of All Time on the Secrets to Wealth and Prosperity
- List rank#2
- Price$1.99
- Rating4.7
- Reviews2,149
-
Interest and Prices: A Study of the Causes Regulating the Value of Money
by Knut Wicksell
- List rank#3
- Price$9.99
- Rating3.9
- Reviews5
-
Open Secret: The Global Banking Conspiracy That Swindled Investors Out of Billions
by Erin Arvedlund
- List rank#4
- Price$14.99
- Rating3.6
- Reviews27
-
Next Is Now: How to Move Forward When Disruption, Doubt, and Discomfort Hit All at Once.
by Leigh Brown
- List rank#5
- Price$2.99
- Rating4.9
- Reviews36
-
Million Dollar Family Secrets: Make Your Money Work for You to Create Generational Wealth
by Kiana Danial
- List rank#6
- Price$0.99
- Rating4.0
- Reviews191
-
Fortress Stacking: The Contrarian's Guide to Real Money in a Paper World: The Reading Edition (Fortress Stacking: Mastering Gold & Silver Stacking for Wealth Protection)
by Silver State Stacker
- List rank#7
- Price$7.99
- Rating5.0
- Reviews2
-
Interest Rate Modeling: Theory, Implementation, and Market Practice
by Vincent Bisette
- List rank#8
- Price$9.99
- Reviews-
-
Financial Derivative Investments: An Introduction To Structured Products
by Richard Bateson
- List rank#9
- Price$17.90
- Rating4.5
- Reviews2
-
The road to investing: The exact steps that you need to take to invest on the stock market (Investing in your future Book 1)
by Alexander Johnsson
- List rank#10
- Price$2.99
- Rating3.7
- Reviews7
Same niche in Books: Interest
FAQ
Is Interest a good niche for Amazon KDP?
Its KDPTop opportunity score is 19/100, which makes it highly competitive. The median best seller has 17 reviews and sells for $6.99.
How many reviews do you need to rank in Interest?
The median best seller has 17 reviews, and 79% of them have fewer than 100.
What do Interest best sellers cost?
The median price is $6.99; half of the best sellers are priced between $2.99 and $9.99.
Can new books break into Interest?
5% 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.