KDP categories · Top KDP authors
Maintenance, Repair & Upgrading: Amazon KDP category data
Amazon Books Best Sellers data for Maintenance, Repair & Upgrading, updated Nov 3, 2026: median price $20.02, median 3 reviews, average rating 4.3 and a KDPTop opportunity score of 30/100 (highly competitive).
| Price range (middle 50%) | $17.37 – $29.16 |
|---|---|
| Average rating | 4.3 |
| New releases (90 days) | 36% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 2% of the parent category Hardware & DIY (152), one of the easier corners under it.
- 36% of its best sellers came out in the last 90 days, more than in 98% of Books categories: readers here keep buying new titles.
- Its review barrier is lower than in 94% of Books categories: the median best seller has only 3 reviews, so new books can chart with few.
Top 10 Maintenance, Repair & Upgrading best sellers
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CompTIA A+ Study Guide: Complete and Exam-Focused Reference for Core 1 (220-1201) & Core 2 (220-1202) with E-Learning Platform, Exam Simulations, Practical Study Strategies, and IT Case Studies
by Hopperfield Education
- List rank#1
- Price$29.99
- Rating4.8
- Reviews326
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CompTIA A+ 220-1201 and 220-1202 Study Guide: The All-in-One Manual to Pass Core 1 & 2 with Confidence – Includes Labs, Practical Exercises, and the Exam AI Trainer Pro (CompTIA Certification Series)
by Shawn Walker
- List rank#2
- Price$29.99
- Rating4.5
- Reviews210
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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#3
- Price$38.32
- Rating4.7
- Reviews1,238
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Learn To Repair Video Games And Earn Money!
by ing. Angel Damiron
- List rank#4
- Price$37.74
- Rating5.0
- Reviews1
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Building Your Own Computer Made Easy: The Step By Step Guide
- List rank#5
- Price$13.56
- Rating4.5
- Reviews423
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How to Build a Gaming PC for Beginners: A Complete Step-by-Step PC Building Guide for Gaming, Streaming, and Performance
by Robert I. Grass
- List rank#6
- Price$17.99
- Rating4.7
- Reviews4
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3D Printing Failures: 2022 Edition: How to Diagnose and Repair ALL Desktop 3D Printing Issues
by Sean Aranda
- List rank#7
- Price$34.26
- Rating4.8
- Reviews817
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CompTIA A+ 220-1201 & 220-1202 Exam Test Prep Computing Technology Industry Association - Audio Study Guide: Perfect for Commuting, Exercising, and Doing Chores!
- List rank#8
- Price$30.92
- Reviews-
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CompTIA A+ Certification All-in-One Exam Guide, Ninth Edition (Exams 220-901 & 220-902)
by Mike Meyers
- List rank#10
- Price$29.69
- Rating4.6
- Reviews2,050
FAQ
Is Maintenance, Repair & Upgrading a good niche for Amazon KDP?
Its KDPTop opportunity score is 30/100, which makes it highly competitive. The median best seller has 3 reviews and sells for $20.02.
How many reviews do you need to rank in Maintenance, Repair & Upgrading?
The median best seller has 3 reviews, and 71% of them have fewer than 100.
What do Maintenance, Repair & Upgrading best sellers cost?
The median price is $20.02; half of the best sellers are priced between $17.37 and $29.16.
Can new books break into Maintenance, Repair & Upgrading?
36% 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.