Compulsive Behavior — Kindle Category Opportunity
Competition snapshot for the Self-Help best-seller list, ease-of-entry score 45.0/100.
Category metrics
Score
45.0
Median reviews
127.5
Weak share (top 20)
30%
Median price
$9.99
Median star rating
4.7
Books scanned
50
Worth writing in?
The Compulsive Behavior list shows real reader demand with room left for newcomers: the median book carries 127.5 reviews, yet 30% of the top 20 still sit under 100 reviews. 0 top-15 books hold fewer than 100 reviews at $0.99–4.99 — classic self-publishing breakout books. Ease-of-entry score 45.0/100.
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 |
|---|---|---|
| obsessive compulsive | 8 | 269 |
| obsessive compulsive disorder | 6 | 197 |
| obsessive thoughts | 3 | 112 |
| change your thinking change | 2 | 91 |
| thinking change your life | 2 | 91 |
| war in your mind | 2 | 91 |
| winning the war | 2 | 91 |
| cbt based guide | 2 | 88 |
| breaking free | 2 | 86 |
| guide to getting over | 2 | 86 |
| intrusive thoughts | 3 | 80 |
| workbook for ocd | 4 | 75 |
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More Self-Help categories
2 subcategories under this category
| Subcategory | Score | Median reviews |
|---|---|---|
| █████ | 77.5 | 5 |
| █████ | 52.0 | 80 |
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.