KDP categories · Top KDP authors
Oracle (Certification, Books): Amazon KDP category data
Amazon Books Best Sellers data for Oracle (Certification, Books), updated Nov 3, 2026: median price $26.30, median 18 reviews, average rating 4.2 and a KDPTop opportunity score of 24/100 (highly competitive).
| Price range (middle 50%) | $19.54 – $47.01 |
|---|---|
| Average rating | 4.2 |
| New releases (90 days) | 15% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 23% of the parent category Certification (79), one of the easier corners under it.
- At $26.30 its median price beats 86% of Books categories, leaving more margin per copy.
- 15% of its best sellers came out in the last 90 days, more than in 80% of Books categories: readers here keep buying new titles.
Top 10 Oracle best sellers
-
OCP Java 25 Programmer Certification Fundamentals: Study Guide For 1Z0-831 (OCP Java 25 Programmer Certification Exam Fundamentals Study Guide Book 1)
- List rank#1
- Price$1.99
- Rating5.0
- Reviews1
-
OCP Java 25 Certification Exam Refresher: Study Notes for 1Z0-831
- List rank#2
- Price$0.99
- Reviews-
-
OCP Oracle Certified Professional Java SE 21 Developer Study Guide: Exam 1Z0-830 (Sybex Study Guide)
by Jeanne Boyarsky
- List rank#3
- Price$19.99
- Rating4.7
- Reviews93
-
Oracle Fusion HCM Consultant Cheat Sheet: Core HR, Payroll, Recruiting, Talent Management, Security, Integrations, Reporting, Fast Formula, HDL, REST ... (Oracle Fusion cloud visual guide)
by Vennkkat Sai K
- List rank#4
- Price$15.99
- Reviews-
-
Oracle Fusion ERP Cheat Sheet Handbook: Functional Consultant Guide with Enterprise Process Maps, Configuration Concepts, Integration Flows, Rapid ... (Oracle Fusion cloud visual guide)
by K Vennkkat Sai
- List rank#5
- Price$15.98
- Reviews-
-
OCP Oracle Certified Professional Java SE 17 Developer Study Guide: Exam 1Z0-829 (Sybex Study Guide)
by Scott Selikoff
- List rank#6
- Price$36
- Rating4.6
- Reviews211
-
Mastering Oracle Database 19c/26ai Performance Tuning - Like a PRO
by TANVEER .A
- List rank#7
- Price$4.99
- Reviews-
-
OCP Oracle Certified Professional Java SE 17 Developer Practice Tests: Exam 1Z0-829
by Jeanne Boyarsky
- List rank#8
- Price$29.78
- Rating4.7
- Reviews37
-
Oracle Transportation Management - Configuration Handbook: An End-to-End Practical Guide to Oracle Transportation Management
by Aslam Khan
- List rank#9
- Price$9.99
- Reviews-
-
Oracle Database Exadata Cloud Service: A Beginner's Guide
by Brian Spendolini
- List rank#10
- Price$44.04
- Rating3.7
- Reviews7
FAQ
Is Oracle a good niche for Amazon KDP?
Its KDPTop opportunity score is 24/100, which makes it highly competitive. The median best seller has 18 reviews and sells for $26.30.
How many reviews do you need to rank in Oracle?
The median best seller has 18 reviews, and 81% of them have fewer than 100.
What do Oracle best sellers cost?
The median price is $26.30; half of the best sellers are priced between $19.54 and $47.01.
Can new books break into Oracle?
15% 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.