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Harper Jenkins: Amazon KDP author data
As of Nov 6, 2026, Harper Jenkins has 19 books on Amazon, 12 of them on a best-seller list in the last 30 days (best rank #1), mostly in Special Education, Study & Test-Taking Skills, Test Flash Cards.
| Median price | $16.49 |
|---|---|
| Price range (middle 50%) | $9.99 – $29.99 |
| Median reviews | 25 |
| Total reviews | 460 |
| New listings (30 days, incl. new editions) | 3 |
| Breakout books (30 days) | 0 |
What stands out
- 63% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $16.49, 43% below the median of their main category, Special Education.
- 3 new listings in the last 30 days (new editions included).
Harper Jenkins's best-ranked books
-
NMLS Study Guide: Step-by-Step Federal Law Decoders, and Expert Strategies to Ace the Exam, + 1200 Q&As with Detailed Explanations (10 Full-Length Tests)
by Harper Jenkins
- Price$29.99
- Rating4.2
- Reviews26
-
RBT Exam Prep: Zero-Fluff Strategies, Straightforward Tactics and Breakdowns + 1020 Q&As with Detailed Explanations (12 Full-Length Tests)
by Harper Jenkins
- Price$21.97
- Rating4.9
- Reviews33
-
PANCE/PANRE Study Guide: Your Roadmap to Certifications with Expert Insights and 1080 Q&As with Detailed Explanations (2+2 Full Length Practice Tests)
by Harper Jenkins
- Price$39.56
- Rating3.3
- Reviews51
-
ATI TEAS 7 Mastery: The Up-To-Date Guide with Key Strategies and Efficient Methods to Dominate the Test in 30 Days + 2040 Q&As with Detailed Explanations (12 Full Exams)
by Harper Jenkins
- Price$19.99
- Rating4.7
- Reviews25
-
Praxis Middle School Science (5442) Exam Prep : Your No-Stress Study Guide to Mastering Concepts and Avoiding Common Test Mistakes + 500 Q&As with Detailed Explanations (4 Full-Length Tests)
by Harper Jenkins
- Price$23.90
- Rating3.6
- Reviews25
-
RBT Exam Prep: Zero-Fluff Strategies, Straightforward Tactics and Breakdowns + 1020 Q&As with Detailed Explanations (12 Full-Length Tests)
by Harper Jenkins
- Price$9.99
- Rating4.9
- Reviews33
-
US Citizenship Test Study Guide: All 128 USCIS Civics Questions, Simulated Interviews & Practice Exams For The Naturalization Test
by Harper Jenkins
- Price$9.99
- Rating4.7
- Reviews4
-
Praxis Biology (5236) Exam Mastery: Cut Through the Complexity with Focused Content, Precision Strategies, High-Yield Review and 450 Q&As with Detailed Explanations (3 Full-Length Tests)
by Harper Jenkins
- Price$29.99
- Rating4.0
- Reviews25
-
ATI TEAS 7 Mastery: The Up-To-Date Guide with Key Strategies and Efficient Methods to Dominate the Test in 30 Days + 2040 Q&As with Detailed Explanations (12 Full Exams)
by Harper Jenkins
- Price$36.30
- Rating4.7
- Reviews25
-
PANCE/PANRE Study Guide: Your Roadmap to Certifications with Expert Insights and 1080 Q&As with Detailed Explanations (2+2 Full Length Practice Tests)
by Harper Jenkins
- Price$9.99
- Rating3.3
- Reviews51
Main categories
FAQ
How many books does Harper Jenkins have on Amazon?
KDPTop tracks 19 of their books; 12 made an Amazon list in the last 30 days.
Which categories does Harper Jenkins publish in?
Their books chart most often in Special Education, Study & Test-Taking Skills, Test Flash Cards.
How does Harper Jenkins price their books?
The median price is $16.49; half of the books cost $9.99–$29.99.
Has Harper Jenkins released new books recently?
3 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.