KDP categories · Top KDP authors
Linux (Certification, Books): Amazon KDP category data
Amazon Books Best Sellers data for Linux (Certification, Books), updated Nov 3, 2026: median price $29.99, median 11 reviews, average rating 4.3 and a KDPTop opportunity score of 27/100 (highly competitive).
| Price range (middle 50%) | $20.83 – $40.28 |
|---|---|
| Average rating | 4.3 |
| New releases (90 days) | 18% |
| Books on the list | 99 |
| Store | Books |
What stands out
- Its median reviews are 14% of the parent category Certification (79), one of the easier corners under it.
- 18% of its best sellers came out in the last 90 days, more than in 89% of Books categories: readers here keep buying new titles.
- At $29.99 its median price beats 89% of Books categories, leaving more margin per copy.
Top 10 Linux best sellers
-
CompTIA Linux+ Study Guide: Exam XK0-006 (Sybex Study Guide)
by Richard Blum
- List rank#1
- 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#2
- Price$17.47
- Rating4.3
- Reviews600
-
101 Labs - CompTIA Linux+: Hands-on Practice Labs for the XK0-006 Exam
- List rank#3
- Price$19.99
- Reviews-
-
Kali Linux for Beginners, A step-by-step Guide to Ethical Hacking: Mastering Cybersecurity with Hands-On Exercises
by ETS Publishing
- List rank#4
- Price$7.99
- Rating4.1
- Reviews94
-
Linux All-In-One For Dummies (For Dummies (Computer/Tech))
by Richard Blum
- List rank#5
- Price$21.43
- Rating4.6
- Reviews169
-
Red Hat RHCSA 10 Cert Guide: EX200
by Sander van Vugt
- List rank#6
- Price$54.98
- Rating3.9
- Reviews8
-
The Kubernetes Book
by Nigel Poulton
- List rank#7
- Price$9.99
- Rating4.5
- Reviews1,584
-
RHCSA 10 (EX200) Certification Guide & Reference Manual: A Complete Study Guide, Technical Reference, and Practical Lab Manual for Red Hat Enterprise Linux 10 (The Red Hat Path Series)
by Ghada Atef
- List rank#8
- Price$34.99
- Reviews-
-
LPI Linux Essentials Study Guide: Exam 010 v1.6
by Christine Bresnahan
- List rank#9
- Price$28.99
- Rating4.7
- Reviews109
-
RHCSA Red Hat Enterprise Linux 10: Training and Exam Preparation Guide (EX200), Fourth Edition
by Asghar Ghori
- List rank#10
- Price$60
- Rating4.3
- Reviews20
FAQ
Is Linux a good niche for Amazon KDP?
Its KDPTop opportunity score is 27/100, which makes it highly competitive. The median best seller has 11 reviews and sells for $29.99.
How many reviews do you need to rank in Linux?
The median best seller has 11 reviews, and 83% of them have fewer than 100.
What do Linux best sellers cost?
The median price is $29.99; half of the best sellers are priced between $20.83 and $40.28.
Can new books break into Linux?
18% 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.