KDP categories · Top KDP authors
Tools (Software Design, Testing & Engineering, Books): Amazon KDP category data
Amazon Books Best Sellers data for Tools (Software Design, Testing & Engineering, Books), updated Nov 2, 2026: median price $34.99, median 34 reviews, average rating 4.5 and a KDPTop opportunity score of 37/100 (highly competitive).
| Price range (middle 50%) | $29.95 – $44.04 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 24% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 8% of the parent category Software Design, Testing & Engineering (441), one of the easier corners under it.
- 24% of its best sellers came out in the last 90 days, more than in 94% of Books categories: readers here keep buying new titles.
- At $34.99 its median price beats 91% of Books categories, leaving more margin per copy.
Top 10 Tools best sellers
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![Claude AI for Beginners Bible: [5 in 1] The Ultimate Guide to Automate Your Work, Save Hou book cover by Pierce J. Sheldon](https://images-na.ssl-images-amazon.com/images/I/614ZV3Ts-gL._AC_UL300_SR300,200_.jpg)
Claude AI for Beginners Bible: [5 in 1] The Ultimate Guide to Automate Your Work, Save Hours Every Week, and Use AI for Real-World Results
by Pierce J. Sheldon
- List rank#1
- Price$22.77
- Rating4.4
- Reviews437
-
AI Agents Made Simple: A Decision Guide to Building AI Agents That Work (Super AI Engineering Series)
by Nir Diamant
- List rank#2
- Price$9.99
- Rating5.0
- Reviews4
-
Fundamentals of Software Architecture: A Modern Engineering Approach
by Mark Richards
- List rank#3
- Price$52.40
- Rating4.6
- Reviews108
-
Build with Claude Code: From zero to deployed apps with AI-assisted development
by Taeho Jo
- List rank#4
- Price$34.99
- Rating4.7
- Reviews13
-
Evals for AI Engineers: Systematically Measuring and Improving AI Applications
by Shreya Shankar
- List rank#5
- Price$75.49
- Reviews-
-
A Philosophy of Software Design, 2nd Edition
by John K. Ousterhout
- List rank#6
- Price$9.99
- Rating4.5
- Reviews2,889
-
Software Architecture: The Hard Parts: Modern Trade-Off Analyses for Distributed Architectures
by Neal Ford
- List rank#7
- Price$31.78
- Rating4.5
- Reviews748
-
Building Applications with AI Agents: Designing and Implementing Multiagent Systems
by Michael Albada
- List rank#8
- Price$16.95
- Rating4.2
- Reviews62
-
Observability Engineering: Achieving Production Excellence
by Charity Majors
- List rank#9
- Price$53.66
- Rating5.0
- Reviews3
-
Beyond Vibe Coding: From Coder to AI-Era Developer
by Addy Osmani
- List rank#10
- Price$18.19
- Rating3.9
- Reviews28
FAQ
Is Tools a good niche for Amazon KDP?
Its KDPTop opportunity score is 37/100, which makes it highly competitive. The median best seller has 34 reviews and sells for $34.99.
How many reviews do you need to rank in Tools?
The median best seller has 34 reviews, and 75% of them have fewer than 100.
What do Tools best sellers cost?
The median price is $34.99; half of the best sellers are priced between $29.95 and $44.04.
Can new books break into Tools?
24% 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.