KDP categories · Top KDP authors
Constitutional Law (New, Used & Rental Textbooks › Law, Books): Amazon KDP category data
Amazon Books Best Sellers data for Constitutional Law (New, Used & Rental Textbooks › Law, Books), updated Nov 3, 2026: median price $31.99, median 22 reviews, average rating 4.6 and a KDPTop opportunity score of 36/100 (highly competitive).
| Price range (middle 50%) | $20.90 – $51.74 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 4% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 25% of the parent category Law (88), one of the easier corners under it.
- At $31.99 its median price beats 90% of Books categories, leaving more margin per copy.
- Only 4% of its best sellers are under 90 days old, fewer than in 82% of Books categories: established titles hold the list.
Top 10 Constitutional Law best sellers
-
The Second Founding: How the Civil War and Reconstruction Remade the Constitution
by Eric Foner
- List rank#1
- Price$11.12
- Rating4.7
- Reviews1,162
-
Supremacy: How Rule by the Court Replaced Government by the People
- List rank#2
- Price$29.79
- Rating4.6
- Reviews21
-
Law 101: Everything You Need to Know About American Law
by Jay M. Feinman
- List rank#3
- Price$31.34
- Rating4.6
- Reviews240
-
![Constitutional Law: [Connected eBook with Study Center] (Aspen Casebook) book cover by Erwin Chemerinsky](https://images-na.ssl-images-amazon.com/images/I/61R-n2y0Q8L._AC_UL300_SR300,200_.jpg)
Constitutional Law: [Connected eBook with Study Center] (Aspen Casebook)
by Erwin Chemerinsky
- List rank#4
- Price$170
- Rating4.6
- Reviews102
-
Understanding the Arizona Constitution
by Toni McClory
- List rank#5
- Price$20.95
- Rating4.4
- Reviews1,029
-
America's Constitution: A Biography
by Akhil Reed Amar
- List rank#6
- Price-
- Rating4.7
- Reviews528
-
Questions & Answers: Constitutional Law (Questions & Answers Series)
by Paul McGreal
- List rank#7
- Price$24.18
- Rating4.4
- Reviews7
-
Constitutional Law: Principles and Polices (Aspen Treatise)
by Erwin Chemerinsky
- List rank#8
- Price$53
- Rating4.5
- Reviews57
-
The People Themselves: Popular Constitutionalism and Judicial Review
by Larry D. Kramer
- List rank#9
- Price$51
- Rating4.8
- Reviews32
-
The Digital Fourth Amendment: Privacy and Policing in Our Online World
by Orin Kerr
- List rank#10
- Price$34.95
- Rating4.7
- Reviews16
FAQ
Is Constitutional Law a good niche for Amazon KDP?
Its KDPTop opportunity score is 36/100, which makes it highly competitive. The median best seller has 22 reviews and sells for $31.99.
How many reviews do you need to rank in Constitutional Law?
The median best seller has 22 reviews, and 82% of them have fewer than 100.
What do Constitutional Law best sellers cost?
The median price is $31.99; half of the best sellers are priced between $20.90 and $51.74.
Can new books break into Constitutional Law?
4% 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.