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CERTZIO PUBLICATIONS: Amazon KDP author data
As of Nov 6, 2026, CERTZIO PUBLICATIONS has 8 books on Amazon, 8 of them on a best-seller list in the last 30 days (best rank #16), mostly in Vocational Tests, Study Skills, Health Care Delivery.
| Median price | $30.99 |
|---|---|
| Price range (middle 50%) | $29.99 – $32.24 |
| Median reviews | 2 |
| Total reviews | 15 |
| New books (30 days) | 8 |
| Breakout books (30 days) | 2 |
What stands out
- 100% 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, 2 of them broke into a Best Sellers list.
CERTZIO PUBLICATIONS's best-ranked books
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NBDHE STUDY GUIDE 2026-2027: Master the Knowledge and Clinical Judgment Needed for Certification with Complete Domain Coverage, 1,050 Practice ... Mastery Cards, and Detailed Explanations
by CERTZIO PUBLICATIONS
- Price$31.99
- Rating5.0
- Reviews1
- Published2026-09
-
CLT STUDY GUIDE 2026-2027: Master the Reading, Grammar, Quantitative Reasoning, and Analytical Skills Required for CLT Success with Complete Content ... Mastery Cards, and Detailed Explanations
by CERTZIO PUBLICATIONS
- Price$29.99
- Rating5.0
- Reviews3
-
CQA EXAM PREP 2026-2027: Master the Auditing Knowledge, Professional Judgment, and Competencies Required for the Certification with Complete Domain ... Mastery Cards, and Detailed Explanations
by CERTZIO PUBLICATIONS
- Price$32.99
- Rating5.0
- Reviews3
-
CFM STUDY GUIDE 2026-2027: Master the Knowledge, Strategic Decision-Making, and Professional Competencies Required for Certification with Complete ... Mastery card, and Detailed Explanations
by CERTZIO PUBLICATIONS
- Price$29.99
- Rating5.0
- Reviews2
-
SCRN STUDY GUIDE 2026-2027: Master the Knowledge, Clinical Judgment, and Stroke Nursing Competencies Required for Certification with Complete Exam ... Mastery Cards, and Detailed Explanations
by CERTZIO PUBLICATIONS
- Price$31.99
- Rating5.0
- Reviews2
-
WorkKeys Study Guide 2026-2027: Master Applied Math, Workplace Documents, and Graphic Literacy Skills Required for the Assessment with Complete Domain ... Mastery Cards, and Detailed Explanations
by CERTZIO PUBLICATIONS
- Price$28.99
- Rating5.0
- Reviews2
-
CERTIFIED COMMUNITY PARAMEDIC STUDY GUIDE 2026-2027: Master Community Paramedicine, Clinical Decision Making, and Integrated Patient Care with ... Mastery Cards, and Detailed Explanations
by CERTZIO PUBLICATIONS
- Price$34.99
- Rating5.0
- Reviews1
-
CHC STUDY GUIDE 2026-2027: Master the Knowledge, Professional Judgment, and Compliance Competencies Required for the Certification with Complete ... Mastery Cards, and Detailed Explanations
by CERTZIO PUBLICATIONS
- Price$29.99
- Rating5.0
- Reviews1
Main categories
FAQ
How many books does CERTZIO PUBLICATIONS have on Amazon?
KDPTop tracks 8 of their books; 8 made an Amazon list in the last 30 days.
Which categories does CERTZIO PUBLICATIONS publish in?
Their books chart most often in Vocational Tests, Study Skills, Health Care Delivery.
How does CERTZIO PUBLICATIONS price their books?
The median price is $30.99; half of the books cost $29.99–$32.24.
Has CERTZIO PUBLICATIONS released new books recently?
8 new books in the last 30 days, 2 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.