Specialties — Kindle Category Opportunity
Competition snapshot for the Medical eBooks best-seller list, ease-of-entry score 0.0/100.
Category metrics
Score
0.0
Median reviews
1,467.5
Weak share (top 20)
0%
Median price
$9.98
Median star rating
4.6
Books scanned
50
Worth writing in?
Specialties is heavily defended: incumbents are deep-reviewed and the top 20 rarely cracks. New releases can still chart with ads or a launch push, but expect to climb over established authors rather than around them. Ease-of-entry score 0.0/100.
Breakout books — top 15, under 100 reviews, $0.99–4.99
Best-seller list on AmazonNo breakout books in this category.
High-frequency phrases in this category's titles
Mine all categoriesHigh-frequency phrases mined from the 50 best-seller titles on this category's list. The ease-of-entry score tells you how winnable the category is; these title phrases tell you which words readers search with — use the two layers together. Frequency is a title statistic, not a search-volume estimate.
| Phrase | Titles | Rank-weighted score |
|---|---|---|
| minutes day | 2 | 53 |
| taking charge | 2 | 48 |
| guide to healthy | 3 | 45 |
| evidence based | 2 | 41 |
| emergency medicine | 2 | 35 |
| dsm tr | 2 | 29 |
| practical guide | 2 | 20 |
| guide to healthy eating | 2 | 12 |
Sign in and click any phrase to send it straight to the keyword competition lookup.
More Medical eBooks categories
19 subcategories under this category
| Subcategory | Score | Median reviews |
|---|---|---|
| █████ | 76.0 | 5 |
| █████ | 74.5 | 18 |
| █████ | 72.5 | 15.5 |
| █████ | 70.5 | 20.5 |
| █████ | 68.5 | 2.5 |
| █████ | 68.0 | 30 |
| █████ | 67.0 | 17 |
| █████ | 65.0 | 9.5 |
| █████ | 61.0 | 39.5 |
| █████ | 59.5 | 39 |
| █████ | 52.5 | 72 |
| █████ | 46.0 | 174 |
| █████ | 41.0 | 264 |
| █████ | 40.0 | 152.5 |
| █████ | 37.5 | 490.5 |
| █████ | 35.0 | 266 |
| █████ | 19.5 | 37.5 |
| █████ | 11.0 | 204 |
| █████ | 10.5 | 404 |
Subcategory names are visible after sign-in — a free account unlocks every subcategory score.
Sign up free to unlockCheck the keywords before you write
Category scores show where entry is easiest; keyword lookups show whether readers actually reach for it. A free account includes keyword competition lookups plus unlimited category scans.
After you publish: why aren't readers buying?
Category research picks the direction; review diagnosis reads the readers. The same platform clusters a book's critical reviews into severity-ranked root causes, each anchored to verbatim quotes — see it applied to a full narrative-history title.
Keep researching with the free tools
Research snapshot scanned on Oct 19, 2026. Refreshed periodically — not live tracking.