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Roger C Newlin: Amazon KDP author data
Roger C Newlin has 48 books on Amazon, 24 of them on a best-seller list in the last 30 days (best rank #13), mostly in Engineering, Civil Engineering, Professional.
48Books on Amazon
24Listed in 30 days
4.0Average rating
| Median price | $36.58 |
|---|---|
| Price range (middle 50%) | $20.99 – $56.80 |
| Median reviews | 2 |
| Total reviews | 2 |
| New books (30 days) | 24 |
| Breakout books (30 days) | 9 |
What stands out
- 50% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- 24 new books in the last 30 days, 9 of them broke into a Best Sellers list.
Roger C Newlin's best-ranked books
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Management Auditor Trainee Study Guide: 1,000+ Practice Questions Covering GAGAS and Internal Controls, with Full Answer Explanations Plus Online Exam Simulator Access to Ace the DCAS Exam
by Roger C Newlin
- Price$40.99
- Rating4.0
- Reviews2
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Certified Dental Technician Exam Prep: 1,000+ Practice Questions with Full Answer Explanations Plus Online Simulator Access, Covering Oral Anatomy and Occlusion, for National Board Success
by Roger C Newlin
- Price$56.30
- Reviews-
- Published2026-09
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Construction Civil PE Exam Prep: 2,000+ Practice Questions, Full Answer Explanations, Plus an Online Exam Simulator, Covering Scheduling & Cost Estimating for Every Professional Engineer Candidate
by Roger C Newlin
- Price$30.99
- Reviews-
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Construction Civil PE Exam Prep: 2,000+ Practice Questions, Full Answer Explanations, Plus an Online Exam Simulator, Covering Scheduling & Cost Estimating for Every Professional Engineer Candidate
by Roger C Newlin
- Price$72.01
- Reviews-
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California Engineering Surveying Exam Prep: 1,000+ Practice Questions with an Online Exam Simulator, covering Traverse Calculations and Vertical Curves, for Complete Licensure Readiness
by Roger C Newlin
- Price$30.99
- Reviews-
-
Transportation Civil PE Exam Prep: CBT-Aligned Coverage of Drainage Design plus Traffic Operations, with 1,000+ Practice Questions and an Online Simulator for Professional Engineers
by Roger C Newlin
- Price$56.80
- Reviews-
-
Principal Administrative Associate Exam Prep 2026–2027: Work through 3,000+ Practice Questions covering Eligibility and Records with an Online Simulator plus Full Answer Explanations to Advance
by Roger C Newlin
- Price$29.99
- Reviews-
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LEED Green Associate Exam Prep V5: Featuring 3,000+ Practice Questions, Embodied Carbon, Energy Modeling, and Full Answer Explanations for Building Professionals
by Roger C Newlin
- Price$29.99
- Reviews-
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California Engineering Surveying Exam Prep: 1,000+ Practice Questions with an Online Exam Simulator, covering Traverse Calculations and Vertical Curves, for Complete Licensure Readiness
by Roger C Newlin
- Price$56.46
- Reviews-
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NBPTS Exceptional Needs Specialist Study Guide: IEP Development Review, 2,000+ Practice Questions, an Online Exam Simulator, and Full Answer Explanations for National Board Certification Success
by Roger C Newlin
- Price$40.99
- Reviews-
Main categories
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.