KDP categories · Top KDP authors
Personal & Private Investigations: Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Personal & Private Investigations, updated Nov 3, 2026: median price $6.99, median 4 reviews, average rating 4.3 and a KDPTop opportunity score of 23/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $9.99 |
|---|---|
| Average rating | 4.3 |
| New releases (90 days) | 12% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 0% of the parent category Reference (1,036), one of the easier corners under it.
- Its review barrier is lower than in 89% of Kindle eBooks categories: the median best seller has only 4 reviews, so new books can chart with few.
- Prices spread wide: the middle half runs from $3.99 to $9.99, so budget editions and premium or boxed sets sell side by side.
Top 10 Personal & Private Investigations best sellers
-
Spy the Lie: Former CIA Officers Teach You How to Detect Deception
by Philip Houston
- List rank#1
- Price$11.99
- Rating4.6
- Reviews4,514
-
Surveillance and Surveillance Detection: A CIA Insider's Guide
- List rank#2
- Price$12.99
- Rating4.3
- Reviews180
-
The CIA Tradecraft Manual for Civilians: Spy Skills, Situational Awareness, Deception Detection, Digital Privacy, Surveillance Detection, and Personal Security for Everyday Life
by Colter Ashborne
- List rank#3
- Price$4.99
- Reviews-
-
The Ultimate Guide to CIA Skills, Tactics, and Techniques
- List rank#4
- Price$16.99
- Rating3.8
- Reviews30
-
Get the Truth: Former CIA Officers Teach You How to Persuade Anyone to Tell All
by Philip Houston
- List rank#5
- Price$11.99
- Rating4.5
- Reviews824
-
Street Level Spycraft : The Art of Intelligence for Everyday Life (The Spycraft Library Book 2)
by P.J. Agness
- List rank#6
- Price$4.99
- Rating3.9
- Reviews50
-
Liespotting: Proven Techniques to Detect Deception
by Pamela Meyer
- List rank#7
- Price$11.99
- Rating4.2
- Reviews986
-
The Daily Investigator: 366 Lessons to Make You a Better Investigator
by Edward Panico
- List rank#8
- Price$9.99
- Rating5.0
- Reviews14
-
The Impostor Check Handbook: Practical OSINT to Spot AI Fakes, Voice Clones, Spoofed Messages, Fake Profiles, and Stolen Trust Before You Respond (The Truth Check Guides Book 5)
by Charles Colby
- List rank#9
- Price$2.99
- Reviews-
-
ChatGPT: La guía definitiva en español (Spanish Edition)
by Melchor Ramos
- List rank#10
- Price$7.49
- Rating5.0
- Reviews2
FAQ
Is Personal & Private Investigations a good niche for Amazon KDP?
Its KDPTop opportunity score is 23/100, which makes it highly competitive. The median best seller has 4 reviews and sells for $6.99.
How many reviews do you need to rank in Personal & Private Investigations?
The median best seller has 4 reviews, and 86% of them have fewer than 100.
What do Personal & Private Investigations best sellers cost?
The median price is $6.99; half of the best sellers are priced between $3.99 and $9.99.
Can new books break into Personal & Private Investigations?
12% 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.