KDP categories · Top KDP authors
DAVID SAM: Amazon KDP author data
As of Nov 6, 2026, DAVID SAM has 15 books on Amazon, 14 of them on a best-seller list in the last 30 days (best rank #8), mostly in Prep School, Food Animals, Bovine Medicine.
| Median price | $28.99 |
|---|---|
| Price range (middle 50%) | $12.99 – $30.99 |
| Median reviews | 1 |
| Total reviews | 2 |
| New books (30 days) | 8 |
| Breakout books (30 days) | 5 |
What stands out
- 93% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- 8 new books in the last 30 days, 5 of them broke into a Best Sellers list.
DAVID SAM's best-ranked books
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NAVLE Exam Prep 2026–2027: Fully Revised for the NAVLE's New 12-Block Format — Species-by-Species Clinical Review with 5 Full-Length Exams, 1,200-Question Bank with Detailed Rationale.
by DAVID SAM
- Price$40.89
- Reviews-
-
PreACT 8/9 Study Guide 2026–2027: 5 Full-Length Practice Tests, 1,500+ Practice Questions & Step-by-Step Answer Explanations — Plus the 2026 Scoring Changes Explained.
by DAVID SAM
- Price$12.99
- Reviews-
-
CDCES Exam Prep 2026-2027: Certified Diabetes Care and Education Specialist Study Guide — 4 Full-Length Practice Tests and 1,200+ Practice Questions with In-Depth Medication and Device Rationales.
by DAVID SAM
- Price$39.99
- Reviews-
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NAVLE Exam Prep 2026–2027: Fully Revised for the NAVLE's New 12-Block Format — Species-by-Species Clinical Review with 5 Full-Length Exams, 1,200-Question Bank with Detailed Rationale.
by DAVID SAM
- Price$12.99
- Reviews-
-
SSAT UPPER LEVEL PREP GUIDE 2026-2027: Study Guide with Verbal, Quantitative & Reading Comprehension Review, 5 Full-Length Practice Tests, and 1,000+ Practice Questions.
by DAVID SAM
- Price$11.99
- Rating5.0
- Reviews1
-
PTCB Exam Prep 2026-2027: Pharmacy Technician Certification Study Guide | 5 Full-Length Practice Tests and 1,000+ Practice Questions, Every Answer Explained, Pharmacy Math and Top 200 Drugs Review.
by DAVID SAM
- Price$28.99
- Reviews-
- Published2026-08
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ENP Study Guide 2026-2027: Emergency Nurse Practitioner Exam Prep — AANPCB-Aligned Review with 1000+ Practice Questions, Clinical Scenarios, High-Yield Summaries & 5 Full-Length Mock Exams.
by DAVID SAM
- Price$30.99
- Reviews-
-
NEA-BC Study Guide 2026–2027: ANCC Nurse Executive Advanced Exam Prep | 5 Full-Length Practice Tests and 1000+ Practice Questions with In-Depth Rationales, Heavy on Systems, Finance, and Strategy
by DAVID SAM
- Price$27.99
- Reviews-
- Published2026-09
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SSAT UPPER LEVEL PREP GUIDE 2026-2027: Study Guide with Verbal, Quantitative & Reading Comprehension Review, 5 Full-Length Practice Tests, and 1,000+ Practice Questions.
by DAVID SAM
- Price$28.99
- Rating5.0
- Reviews1
-
CCHT Exam Prep 2026-2027: Full Blueprint Coverage — Patient Care, Water Treatment, Machine Technology, Infection Control & Professional Development — 1,200+ Practice Questions & 2 Full Exams.
by DAVID SAM
- Price$30.99
- Reviews-
Main categories
FAQ
How many books does DAVID SAM have on Amazon?
KDPTop tracks 15 of their books; 14 made an Amazon list in the last 30 days.
Which categories does DAVID SAM publish in?
Their books chart most often in Prep School, Food Animals, Bovine Medicine.
How does DAVID SAM price their books?
The median price is $28.99; half of the books cost $12.99–$30.99.
Has DAVID SAM released new books recently?
8 new books in the last 30 days, 5 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.