KDP categories · Top KDP authors
Research (Law Practice, Books): Amazon KDP category data
Amazon Books Best Sellers data for Research (Law Practice, Books), updated Nov 3, 2026: median price $49.95, median 20 reviews, average rating 4.5 and a KDPTop opportunity score of 26/100 (highly competitive).
| Price range (middle 50%) | $26.80 – $86 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 8% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 18% of the parent category Law Practice (114), one of the easier corners under it.
- At $49.95 its median price beats 96% of Books categories, leaving more margin per copy.
- Its review barrier is lower than in 73% of Books categories: the median best seller has only 20 reviews, so new books can chart with few.
Top 10 Research best sellers
-
Civil Procedure: QuickStudy Laminated Reference Guide
- List rank#1
- Price$7.41
- Rating4.6
- Reviews514
-
The Constitution of the United States of America: The Declaration of Independence, The Bill of Rights
- List rank#2
- Price$0.99
- Rating4.8
- Reviews15,122
-
How To Brief A Case: QuickStudy Laminated Reference Guide (Quick Study: Law)
by Jeffrey Davis
- List rank#3
- Price$4.95
- Rating4.7
- Reviews612
-
Contracts: QuickStudy Laminated Reference Guide
- List rank#4
- Price$7.95
- Rating4.8
- Reviews449
-
Federal Rules of Civil Procedure, 2026 Edition: Annotated with Expert Commentary, Judicial Interpretations and Practical Examples for Complete Legal Understanding
by Robert L. Hensley
- List rank#5
- Price$24.99
- Rating4.9
- Reviews29
-
Legal Research and Writing for Paralegals: [Connected eBook with Study Center](Aspen Paralegal Series)
by Deborah E. Bouchoux
- List rank#6
- Price$86
- Rating4.7
- Reviews16
-
Legal Research: a QuickStudy Laminated Reference Guide
by Debra Moss Curtis JD
- List rank#7
- Price$7.95
- Rating4.8
- Reviews180
-
Master Legal Writing in Use + Workbook + 100 Expert Email, Letter & Legal Memo Templates. Clear & Effective Legal Writing for Beginners & Law School ... Legal Writing, Vocabulary & Terminology 3)
by IDM Law
- List rank#8
- Price$2.99
- Rating4.5
- Reviews103
-
Legal Writing Style (Hornbooks)
by Antonio Gidi
- List rank#9
- Price$66
- Rating4.5
- Reviews33
-
An Advocate Persuades
by Joan Rocklin
- List rank#10
- Price$40.85
- Rating4.5
- Reviews52
Same niche in Kindle eBooks: Research
FAQ
Is Research a good niche for Amazon KDP?
Its KDPTop opportunity score is 26/100, which makes it highly competitive. The median best seller has 20 reviews and sells for $49.95.
How many reviews do you need to rank in Research?
The median best seller has 20 reviews, and 81% of them have fewer than 100.
What do Research best sellers cost?
The median price is $49.95; half of the best sellers are priced between $26.80 and $86.
Can new books break into Research?
8% 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.