KDP categories · Top KDP authors
Operating Systems (Computer Science, Books): Amazon KDP category data
Amazon Books Best Sellers data for Operating Systems (Computer Science, Books), updated Nov 2, 2026: median price $29.97, median 75 reviews, average rating 4.5 and a KDPTop opportunity score of 34/100 (highly competitive).
| Price range (middle 50%) | $20.01 – $39.99 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 8% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 23% of the parent category Computer Science (330), one of the easier corners under it.
- At $29.97 its median price beats 88% of Books categories, leaving more margin per copy.
Top 10 Operating Systems best sellers
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Windows 11 For Dummies, 2nd Edition
by Alan Simpson
- List rank#2
- Price$11.40
- Rating4.4
- Reviews716
-
The Linux Command Line, 3rd Edition: A Complete Introduction
by William Shotts
- List rank#3
- Price$27.94
- Rating4.8
- Reviews71
-
Linux Basics for Hackers, 2nd Edition: Getting Started with Networking, Scripting, and Security in Kali
by OccupyTheWeb
- List rank#4
- Price$20.07
- Rating4.8
- Reviews297
-
macOS Reference & Cheat Sheet: The unofficial cheat sheet for macOS on iMacs, MacBooks, and Mac computers (English Edition)
by i30 Media
- List rank#5
- Price$7.99
- Rating4.4
- Reviews606
-
Android Smartphones For Seniors For Dummies (For Dummies (Computer/Tech))
by Marsha Collier
- List rank#6
- Price$16.68
- Rating4.0
- Reviews122
-
CompTIA Linux+ Study Guide: Exam XK0-006 (Sybex Study Guide)
by Richard Blum
- List rank#7
- Price$34.22
- Rating4.7
- Reviews30
-
Linux for Beginners: A Practical and Comprehensive Guide to Learn Linux Operating System and Master Linux Command Line. Contains Self-Evaluation Tests to Verify Your Learning Level
by Ethem Mining
- List rank#8
- Price$17.47
- Rating4.3
- Reviews600
-
How Linux Works, 3rd Edition: What Every Superuser Should Know
by Brian Ward
- List rank#9
- Price$46.59
- Rating4.7
- Reviews826
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CompTIA A+ Certification All-in-One Exam Guide, Eleventh Edition (Exams 220-1101 & 220-1102)
by Travis A. Everett
- List rank#10
- Price$38.32
- Rating4.7
- Reviews1,238
FAQ
Is Operating Systems a good niche for Amazon KDP?
Its KDPTop opportunity score is 34/100, which makes it highly competitive. The median best seller has 75 reviews and sells for $29.97.
How many reviews do you need to rank in Operating Systems?
The median best seller has 75 reviews, and 54% of them have fewer than 100.
What do Operating Systems best sellers cost?
The median price is $29.97; half of the best sellers are priced between $20.01 and $39.99.
Can new books break into Operating Systems?
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.