KDP categories · Top KDP authors
Ronald G. Sena: Amazon KDP author data
As of Nov 6, 2026, Ronald G. Sena has 6 books on Amazon, 6 of them on a best-seller list in the last 30 days (best rank #8), mostly in Test Flash Cards, Pharmacology, Basic Sciences.
| Median price | $28 |
|---|---|
| Price range (middle 50%) | $27.62 – $29.50 |
| Median reviews | 9 |
| Total reviews | 59 |
| New books (30 days) | 6 |
| Breakout books (30 days) | 4 |
What stands out
- 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $28, 75% above the median of their main category, Test Flash Cards.
- 6 new books in the last 30 days, 4 of them broke into a Best Sellers list.
Ronald G. Sena's best-ranked books
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Medical Coding Study Guide 2027: The Complete CPC & CCA Certification Prep with 4,000 Practice Questions, 5 Full-Length Exams, ICD-10-CM, CPT & HCPCS Coding Guidelines
by Ronald G. Sena
- Price$30
- Rating4.9
- Reviews16
- Published2026-08
-
PTCB Exam Prep 2027: Complete Study Guide with 3,500 Practice Questions, 10 Full-Length Practice Tests, Detailed Answer Explanations, and 2-Week and 4-Week Study Plans for the Pharmacy Technician Exam
by Ronald G. Sena
- Price$28
- Rating4.8
- Reviews16
-
VTNE Study Guide 2027 - 2028: Complete Veterinary Technician Certification Prep with 2,800+ Practice Questions and Detailed Answer Explanations, 1000+ ... 6 weeks study plans, 5 Full-Practice Tests
by Ronald G. Sena
- Price$26
- Rating5.0
- Reviews4
-
CFA Level I Study Guide 2027: Complete 2027 Curriculum Review with 2,500 Practice Questions, 5 Mock Exams and Detailed Answer Explanations for All 10 Topics, 1000 Flashcards
by Ronald G. Sena
- Price$28
- Rating4.9
- Reviews10
-
CFA Level II Study Guide 2027-2028: Complete Exam Prep with 1,500 Vignette-Style Practice Questions, 6 Mock Exams and Answer Explanations for All 10 Topic Areas with 1,000 Flashcards
by Ronald G. Sena
- Price$35
- Rating4.8
- Reviews8
-
ServSafe Manager Study Guide 2027-2028: Complete Food Protection Manager Exam Prep with 2,500 Practice Questions, 10 Full-Length Timed Mock Exams, ... Study Tools and In-Depth Answer Explanations
by Ronald G. Sena
- Price$27.50
- Rating4.8
- Reviews5
Main categories
FAQ
How many books does Ronald G. Sena have on Amazon?
KDPTop tracks 6 of their books; 6 made an Amazon list in the last 30 days.
Which categories does Ronald G. Sena publish in?
Their books chart most often in Test Flash Cards, Pharmacology, Basic Sciences.
How does Ronald G. Sena price their books?
The median price is $28; half of the books cost $27.62–$29.50.
Has Ronald G. Sena released new books recently?
6 new books in the last 30 days, 4 of which reached a Best Sellers list.
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.