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Callie Parker: Amazon KDP author data
As of Nov 6, 2026, Callie Parker has 66 books on Amazon, 51 of them on a best-seller list in the last 30 days (best rank #3), mostly in Reviews & Study Guides, Medical & Surgical, Emergency.
| Median price | $12.26 |
|---|---|
| Price range (middle 50%) | $9.87 – $15.23 |
| Median reviews | 6 |
| Total reviews | 703 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 77% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $12.26, 68% below the median of their main category, Reviews & Study Guides.
Callie Parker's best-ranked books
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Oncology Meds Made Easy: A Simplified Oncology Medication Guide for Nursing Students and Healthcare Providers - Quick and Effective Memorization Through Rhymes
by Callie Parker
- Price$19.99
- Rating4.5
- Reviews22
-
Biochemistry Made Easy: Study Guide with Quick Recall, Pathways, and Practice Questions for MCAT, PA School & Med Students
by Callie Parker
- Price$2.99
- Rating4.5
- Reviews9
-
Critical Care Made Easy: A Simplified Critical Care Guide for Nursing Students and Healthcare Providers: Quick and Effective Memorization Through Rhymes (Meds Made Easy)
by Callie Parker
- Price$10.81
- Rating2.5
- Reviews2
- Published2025-04
-
Pathophysiology Made Easy: A Simplified Pathophysiology Guide for Nursing Students and Healthcare Providers - Quick and Effective Memorization Through Rhymes (Meds Made Easy)
by Callie Parker
- Price$16.74
- Rating3.0
- Reviews2
-
Oncology Meds Made Easy: A Simplified Oncology Medication Guide for Nursing Students and Healthcare Providers - Quick and Effective Memorization Through Rhymes
by Callie Parker
- Price$12.26
- Rating4.5
- Reviews22
-
Oncology Meds Made Easy: A Simplified Oncology Medication Guide for Nursing Students and Healthcare Providers - Quick and Effective Memorization Through Rhymes
by Callie Parker
- Price$9.99
- Rating4.5
- Reviews22
-
Cardiac Meds Made Easy: Simplified Cardiac Medication Guide for Nursing Students and Healthcare Providers - Quick and Effective Memorization Through Rhymes
by Callie Parker
- Price$17.99
- Rating5.0
- Reviews3
-
Microbiology Made Easy: A Microbiology Guide for Nursing Students and Healthcare Providers - Quick and Effective Memorization Through Rhyme (Meds Made Easy)
by Callie Parker
- Price$7.99
- Rating4.3
- Reviews27
-
Understanding Bipolar Disorder: From Mania to Depression and Everything in Between (Is It Narcissism, Borderline, or Bipolar?)
by Callie Parker
- Price$14.99
- Rating4.6
- Reviews12
-
Microbiology Made Easy: A Microbiology Guide for Nursing Students and Healthcare Providers - Quick and Effective Memorization Through Rhyme (Meds Made Easy)
by Callie Parker
- Price$17.99
- Rating4.3
- Reviews27
Main categories
FAQ
How many books does Callie Parker have on Amazon?
KDPTop tracks 66 of their books; 51 made an Amazon list in the last 30 days.
Which categories does Callie Parker publish in?
Their books chart most often in Reviews & Study Guides, Medical & Surgical, Emergency.
How does Callie Parker price their books?
The median price is $12.26; half of the books cost $9.87–$15.23.
Has Callie Parker 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.