KDP categories · Top KDP authors
Civil Service (Careers, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Civil Service (Careers, Kindle eBooks), updated Nov 2, 2026: median price $9.99, median 11 reviews, average rating 4.4 and a KDPTop opportunity score of 22/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $9.99 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 23% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- 23% of its best sellers came out in the last 90 days, more than in 90% of Kindle eBooks categories: readers here keep buying new titles.
- Its review barrier is lower than in 81% of Kindle eBooks categories: the median best seller has only 11 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 Civil Service best sellers
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![ASVAB Study Guide & Test Prep [2 in 1]: The Ultimate All-in-One Study System to Master Eve book cover by Optimal Prep Publishing](https://images-na.ssl-images-amazon.com/images/I/71kvGabuz+L._UX300__PJkp-sticker-v1,TopRight,0,-50_AC_UL300_SR300,200_.jpg)
ASVAB Study Guide & Test Prep [2 in 1]: The Ultimate All-in-One Study System to Master Every ASVAB Section and Ace the AFQT with Exam-Ready Practice Tests and Step-by-Step Explanations
- List rank#1
- Price$29.99
- Rating4.6
- Reviews569
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USPS Postal Exam Study Guide 2026–2027 Preparation for VEA 474, 475, 476 & 477: 10 Full-Length Practice Exams and Complete Prep for All Four VEA Positions
by avc books
- List rank#2
- Price$2.99
- Rating5.0
- Reviews8
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Firefighter Exam Prep: The All-in-One Study Guide to Mastering the Test in No Time – Save Effort with Real Simulations, and Proven CPAT Physical Strategies to Get Ready Without the Stress
by Josh Adair
- List rank#3
- Price$24.95
- Rating4.6
- Reviews119
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PELLET B Exam Prep: Comprehensive Training with 1000+ Practice Questions & 6 Full-Length Simulation to Eliminate Test Anxiety, Master CLOZE, Build Confidence and Secure Your Law Enforcement Career
by Derek Marshal
- List rank#4
- Price$0.99
- Rating4.8
- Reviews72
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FSOT Study Guide 2026-2027: Complete Review, 800+ Practice Questions, Expert Strategies, and Full-Length Practice Tests to Pass the Foreign Service Officer Test on Your First Attempt
by Theodore Brantley
- List rank#5
- Price$9.99
- Reviews-
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Firefighter Exam For Dummies
by Stacy L. Bell
- List rank#6
- Price$12.99
- Rating4.2
- Reviews76
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Police Sergeant Oral Board Workbook: The COMMAND Method: Scenario-Based Interview Preparation, Supervisory Decision-Making, and Structured Response ... ... Candidates (COMMAND Method Series Book 1)
by L.K. Duncan
- List rank#7
- Price$0
- Rating4.9
- Reviews15
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Civil Service Exam Study Guide : The Clearest Training Book, With the Complete and Up-to-Date Practice Tests, to Help You Easily Pass the Exam on Your First Try
by Paul Daniel Smith
- List rank#8
- Price$9.99
- Rating4.0
- Reviews88
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Police Officer Exam Prep 2026-2027: Your Complete Step-by-Step Roadmap with 12 Full-Length Practice Tests,2000+ Real Questions & Confidence-Building Strategies to Pass,Rank Higher & Start Your Career
by Vere Simonds
- List rank#9
- Price$9.99
- Rating4.6
- Reviews60
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NYC MTA Conductor Exam Prep: Prepare Smarter and Score Higher With 14 Full-Length Practice Tests, 720 Questions, Detailed Explanations, Memory Drills, ... Strategies (Ashwick Exam Prep Series™)
by Marcus Reyes
- List rank#10
- Price$0.99
- Rating5.0
- Reviews10
FAQ
Is Civil Service a good niche for Amazon KDP?
Its KDPTop opportunity score is 22/100, which makes it highly competitive. The median best seller has 11 reviews and sells for $9.99.
How many reviews do you need to rank in Civil Service?
The median best seller has 11 reviews, and 82% of them have fewer than 100.
What do Civil Service best sellers cost?
The median price is $9.99; half of the best sellers are priced between $3.99 and $9.99.
Can new books break into Civil Service?
23% 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.