KDP categories · Top KDP authors
Fermin O. Goetz P.E.: Amazon KDP author data
As of Nov 6, 2026, Fermin O. Goetz P.E. has 41 books on Amazon, 22 of them on a best-seller list in the last 30 days (best rank #9), mostly in Certification, Training & Reference, Linux, Networking.
| Median price | $9.99 |
|---|---|
| Price range (middle 50%) | $9.99 – $34.72 |
| Median reviews | 2 |
| Total reviews | 86 |
| New listings (30 days, incl. new editions) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 54% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
Fermin O. Goetz P.E.'s best-ranked books
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CompTIA PenTest+ PT0-003 EXAM PREP 2025–2027: Master Penetration Testing with Practice Questions and Hands-On Lab Scenarios for V3 Certification
by Fermin O. Goetz P.E.
- Price$9.99
- Rating4.0
- Reviews3
-
CompTIA NETWORK+ CERTIFICATION EXAM PREP 2025-2027: Master the Practical Approach and Pass the N10-009 (V9) Exam with Confidence and Proven Strategies
by Fermin O. Goetz P.E.
- Price$9.99
- Rating5.0
- Reviews1
-
CompTIA Tech+ CERTIFICATION EXAM PREP 2025-2027: Master IT Fundamentals FC0-U71 (V6) with Proven Strategies and Practice Test Questions
by Fermin O. Goetz P.E.
- Price$9.87
- Reviews-
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CompTIA Data+ DA0-002 EXAM PREP 2025-2027: Master Data Analytics Concepts and Exam Domains with Realistic Practice Tests for Confident V2 Certification Success
by Fermin O. Goetz P.E.
- Price$9.99
- Rating5.0
- Reviews5
-
FE MECHANICAL EXAM PREP 2025-2027: Complete Study Guide with Practice Problems and Solutions for NCEES Fundamentals of Engineering Exam Success
by Fermin O. Goetz P.E.
- Price$38.99
- Reviews-
-
CompTIA SecurityX EXAM STUDY GUIDE 2025-2027: Proven Strategies and Practice Questions to Pass the CAS-005 (V5) Cybersecurity Certification
by Fermin O. Goetz P.E.
- Price$9.99
- Rating4.7
- Reviews4
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CompTIA CySA+ CERTIFICATION EXAM PREP 2025-2027: Proven Strategies for Passing the Cybersecurity Analyst CS0-003 (V3) Certificate Exams with Practice Test
by Fermin O. Goetz P.E.
- Price$9.99
- Reviews-
-
CompTIA PenTest+ EXAM STUDY GUIDE 2025-2027: Master Strategies and Practice Questions to Pass the PT0-003 (V3) Certification Exams with Confidence
by Fermin O. Goetz P.E.
- Price$9.99
- Reviews-
-
CompTIA PenTest+ CERTIFICATION EXAM PREP 2025-2027: Proven Study Material to Pass the PT0-003 (V3) Ethical Hacking Certificate Exams with Confidence
by Fermin O. Goetz P.E.
- Price$9.99
- Rating3.0
- Reviews1
-
FE MECHANICAL EXAM STUDY GUIDE 2025-2027: Pass the Fundamentals of Engineering Exam with Practice Questions and Assessment for NCEES Exam Success
by Fermin O. Goetz P.E.
- Price$35.99
- Rating4.0
- Reviews1
Main categories
FAQ
How many books does Fermin O. Goetz P.E. have on Amazon?
KDPTop tracks 41 of their books; 22 made an Amazon list in the last 30 days.
Which categories does Fermin O. Goetz P.E. publish in?
Their books chart most often in Certification, Training & Reference, Linux, Networking.
How does Fermin O. Goetz P.E. price their books?
The median price is $9.99; half of the books cost $9.99–$34.72.
Has Fermin O. Goetz P.E. released new books recently?
0 new books in the last 30 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.