KDP categories · Top KDP authors
Servers (Databases, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Servers (Databases, Kindle eBooks), updated Nov 3, 2026: median price $9.99, median 6 reviews, average rating 4.3 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $5.00 – $19.84 |
|---|---|
| Average rating | 4.3 |
| New releases (90 days) | 13% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 16% of the parent category Databases (37), one of the easier corners under it.
- Its review barrier is lower than in 87% of Kindle eBooks categories: the median best seller has only 6 reviews, so new books can chart with few.
- Prices spread wide: the middle half runs from $5.00 to $19.84, so budget editions and premium or boxed sets sell side by side.
Top 10 Servers best sellers
-
Simple SQL: Beginner’s Guide To Master SQL And Boost Career (Zero To Hero)
by Dane Wade
- List rank#1
- Price$9.99
- Rating4.2
- Reviews192
-
Supabase for Full-Stack Developers: Build Full-Stack Apps with Postgres, Auth, Storage, and Realtime (Practical Programming)
by Jacob Ren
- List rank#2
- Price$3.99
- Reviews-
-
Field Notes of an Oracle DBA: Practical Administration for Oracle 19c: RAC, Data Guard, RMAN and Multitenant
by Martin Snow
- List rank#3
- Price$10
- Reviews-
-
NAS For Beginners: A Simple Guide to understand the basics of Network Attached Storage (NAS (Network Attached Storage) Book 1)
by Raghav Bhatnagar
- List rank#4
- Price$0.99
- Rating3.5
- Reviews6
-
MySQL for Systems Engineers: SQL, Design, Operations, Backup, Security, and Performance (A Visual Introduction to Computer Systems Book 1)
- List rank#5
- Price$9
- Reviews-
-
Python, Java, SQL & JavaScript: The Ultimate Crash Course for Beginners to Master the 4 Most In-Demand Programming Languages, Stand Out from the Crowd and Find High-Paying Jobs!
- List rank#6
- Price$9.99
- Rating4.4
- Reviews214
-
Postgres for Beginner Full-Stack Developers: Your Practical Guide to Learning PostgreSQL from Scratch (Practical Programming)
by Jacob Ren
- List rank#7
- Price$3.99
- Reviews-
-
PowerShell–SQL Server Integration: Automation Patterns for DBAs: The DBA's Automation Playbook for PowerShell and SQL Server
by GREG WHITE
- List rank#8
- Price$0.99
- Reviews-
-
Introduction to PostgreSQL for the data professional.
by Ryan Booz
- List rank#9
- Price$24.99
- Rating5.0
- Reviews4
-
MongoDB Essentials: Build Faster, Perform Better, Store Smarter, Scale Bigger, and Master Document Database
by Ranjeet Jha
- List rank#10
- Price$9
- Rating4.1
- Reviews19
FAQ
Is Servers a good niche for Amazon KDP?
Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 6 reviews and sells for $9.99.
How many reviews do you need to rank in Servers?
The median best seller has 6 reviews, and 88% of them have fewer than 100.
What do Servers best sellers cost?
The median price is $9.99; half of the best sellers are priced between $5.00 and $19.84.
Can new books break into Servers?
13% 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.