KDP categories · Top KDP authors
Newstone Test Prep: Amazon KDP author data
As of Nov 6, 2026, Newstone Test Prep has 40 books on Amazon, 26 of them on a best-seller list in the last 30 days (best rank #1), mostly in Test Preparation & Review, General, Medical & Surgical.
| Median price | $28.25 |
|---|---|
| Price range (middle 50%) | $24.59 – $29.99 |
| Median reviews | 64 |
| Total reviews | 4,210 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 65% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $28.25, 31% below the median of their main category, Test Preparation & Review.
Newstone Test Prep's best-ranked books
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CHPN Study Guide 2026-2027: Illustrated Review + 2250 Questions and Detailed Answer Explanations for the Certified Hospice and Palliative Nurse Exam (E-Learning Access)
by Newstone Test Prep
- Price$16.99
- Rating4.9
- Reviews47
-
CEN Study Guide 2026-2027: Complete Review + 3000 Questions and Detailed Answer Explanations for the Certified Emergency Nurse Exam (E-Learning Access)
by Newstone Test Prep
- Price$29.99
- Rating4.9
- Reviews183
- Published2026-01
-
PHR Study Guide 2026-2027: Complete Review + 3105 Questions and Detailed Answer Explanations for the Professional in Human Resources Certification (27 Full-Length Exams)
by Newstone Test Prep
- Price$24.99
- Rating4.3
- Reviews162
-
CMA Study Guide 2026-2027: Complete AAMA Review + 4000 Questions and Detailed Answer Explanations for the Certified Medical Assistant Exam (20 Full-Length Exams)
by Newstone Test Prep
- Price$29.99
- Rating4.5
- Reviews288
-
PMH-BC Study Guide 2026-2027: Complete Review + 2100 Questions and Detailed Answer Explanations for the ANCC Psychiatric Mental Health Nursing Certification Exam (E-Learning Access)
by Newstone Test Prep
- Price$29.99
- Rating4.5
- Reviews68
-
NHA CCMA Study Guide 2026-2027: Complete Review + 3240 Questions and Detailed Answer Explanations for the Certified Clinical Medical Assistant Exam (18 Full-Length Exams)
by Newstone Test Prep
- Price$29.99
- Rating4.7
- Reviews213
-
Texas Real Estate Study Guide 2026-2027: Complete Review + 1250 Questions and Detailed Answer Explanations for the Licensing Exam (10 Full-Length Exams)
by Newstone Test Prep
- Price$22.60
- Rating4.2
- Reviews40
-
AAPC CPC Study Guide 2026-2027: Illustrated Review + 4000 Questions and Detailed Answer Explanations for the Certified Professional Coder Exam (E-Learning Access)
by Newstone Test Prep
- Price$28.49
- Rating4.8
- Reviews25
-
Pathophysiology Study Guide: Illustrated Review + 1000 Questions and Detailed Rationales (E-Learning Access)
by Newstone Test Prep
- Price$34.99
- Rating4.9
- Reviews34
-
RNC-NICU Study Guide 2026-2027: Complete Review + 1750 Questions and Detailed Answer Explanations for the Neonatal Intensive Care Nurse Exam (10 Full-Length Exams)
by Newstone Test Prep
- Price$22.87
- Rating4.3
- Reviews70
Main categories
FAQ
How many books does Newstone Test Prep have on Amazon?
KDPTop tracks 40 of their books; 26 made an Amazon list in the last 30 days.
Which categories does Newstone Test Prep publish in?
Their books chart most often in Test Preparation & Review, General, Medical & Surgical.
How does Newstone Test Prep price their books?
The median price is $28.25; half of the books cost $24.59–$29.99.
Has Newstone Test Prep 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.