KDP categories · Top KDP authors
Ray Holder: Amazon KDP author data
As of Nov 6, 2026, Ray Holder has 140 books on Amazon, 16 of them on a best-seller list in the last 30 days (best rank #9), mostly in Vocational Tests, Careers, Professional.
| Median price | $37.95 |
|---|---|
| Price range (middle 50%) | $37.95 – $37.95 |
| Median reviews | 6 |
| Total reviews | 4,121 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- Only 11% of the catalog charted in the last 30 days; sales rest on a few titles.
- Median price $37.95, 27% above the median of their main category, Vocational Tests.
Ray Holder's best-ranked books
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2026 Journeyman Electrician Exam Prep and Study Guide: 400+ Questions & Study Guide for the 2026 National Electrical Code
by Ray Holder
- Price$33.55
- Rating4.5
- Reviews96
-
2020 Journeyman Electrician Exam Questions and Study Guide: 400+ Questions from 14 Tests: Practice Exams, Exam Review, Testing Tips
by Ray Holder
- Price$19.99
- Rating4.6
- Reviews463
-
2026 Master Electrician Exam Prep and Study Guide: 12 Practice Exams +2 Full Final Exams to Help You Easily Pass the Exam: Trusted by 50k Electricians
by Ray Holder
- Price$31.12
- Rating4.6
- Reviews78
-
CÓDIGO NACIONAL ELECTRICO 2020 MAESTRO ELECTRICISTA: PREGUNTAS DE EXAMEN Y GUÍA DE ESTUDIO 2020 (Spanish Edition)
by Ray Holder
- Price$49.95
- Rating4.8
- Reviews9
-
2026 Practical Calculations for Electricians: Trusted By 50k Electricians: Exam Questions & Study Guide for the 2026 National Electrical Code
by Ray Holder
- Price$30.90
- Rating4.0
- Reviews19
-
Rhode Island 2020 Master Electrician Exam Questions and Study Guide: 400+ Questions for study on the 2020 National Electrical Code
by Ray Holder
- Price$45.95
- Rating4.0
- Reviews5
-
New Mexico 2020 Journeyman Electrician Exam Questions and Study Guide: 400 Questions for study on the National Electrical Code
by Ray Holder
- Price$49.95
- Rating4.7
- Reviews7
-
2020 Master Electrician Exam Questions and Study Guide: 400+ Questions from 14 Tests and Testing Tips
by Ray Holder
- Price$49.95
- Rating4.7
- Reviews199
-
2017 Arizona Journeyman Electrician: 2017 National Electrical Code Exam Questions & Study Guide
by Ray Holder
- Price$39.95
- Rating5.0
- Reviews1
-
California 2023 Journeyman Electrician Exam Prep Study Guide: 400+ Questions and Study Guide for the 2023 National Electrical Code
by Ray Holder
- Price$41.63
- Rating5.0
- Reviews6
Main categories
FAQ
How many books does Ray Holder have on Amazon?
KDPTop tracks 140 of their books; 16 made an Amazon list in the last 30 days.
Which categories does Ray Holder publish in?
Their books chart most often in Vocational Tests, Careers, Professional.
How does Ray Holder price their books?
The median price is $37.95; half of the books cost $37.95–$37.95.
Has Ray Holder 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.