KDP categories · Top KDP authors
Preparix: Amazon KDP author data
As of Nov 6, 2026, Preparix has 8 books on Amazon, 8 of them on a best-seller list in the last 30 days (best rank #1), mostly in Test Preparation & Review, Nursing, Education & Training.
| Median price | $35.97 |
|---|---|
| Price range (middle 50%) | $35.19 – $36.48 |
| Median reviews | 216 |
| Total reviews | 2,231 |
| New listings (30 days, incl. new editions) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $35.97, 260% above the median of their main category, Test Preparation & Review.
Preparix's best-ranked books
-
Next Generation NCLEX-RN® Prep: Complete and stress-free guide with examination and mindset strategies to study smarter, NGN clinical judgment, digital exam simulations, and real case studies
by Preparix
- Price$32.91
- Rating4.8
- Reviews492
- Published2025-09
-
CPHQ Study Guide: Exam-Focused Prep for Healthcare Quality Certification with Targeted Review, Patient Safety, Quality Improvement, and Digital Study Tools Featuring Flashcards and Mock Tests
by Preparix
- Price$35.95
- Rating5.0
- Reviews205
- Published2026-06
-
CEN® Study Guide: Your Emergency Nursing Certification Companion with Real Case Scenarios, Smart Study Methods, Digital Exam Simulations, and Mindset Strategies
by Preparix
- Price$37.97
- Rating4.8
- Reviews226
- Published2025-11
-
Next Generation NCLEX-RN® Prep: Complete and stress-free guide with examination and mindset strategies to study smarter, NGN clinical judgment, digital exam simulations, and real case studies
by Preparix
- Price$32.91
- Rating4.8
- Reviews492
-
NLN NEX Study Guide: Your Updated NLN Outline Companion for Smarter Studying, Higher Confidence, and Strong Verbal, Math & Science Foundations
by Preparix
- Price$35.99
- Rating4.8
- Reviews193
-
CPHQ Study Guide: Exam-Focused Prep for Healthcare Quality Certification with Targeted Review, Patient Safety, Quality Improvement, and Digital Study Tools Featuring Flashcards and Mock Tests
by Preparix
- Price$35.95
- Rating5.0
- Reviews204
-
CEN® Study Guide: Your Emergency Nursing Certification Companion with Real Case Scenarios, Smart Study Methods, Digital Exam Simulations, and Mindset Strategies
by Preparix
- Price$37.97
- Rating4.8
- Reviews226
-
NLN NEX Study Guide: Your Updated NLN Outline Companion for Smarter Studying, Higher Confidence, and Strong Verbal, Math & Science Foundations
by Preparix
- Price$35.99
- Rating4.8
- Reviews193
Main categories
FAQ
How many books does Preparix have on Amazon?
KDPTop tracks 8 of their books; 8 made an Amazon list in the last 30 days.
Which categories does Preparix publish in?
Their books chart most often in Test Preparation & Review, Nursing, Education & Training.
How does Preparix price their books?
The median price is $35.97; half of the books cost $35.19–$36.48.
Has Preparix 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.