Technology — Kindle Category Opportunity
Competition snapshot for the Science & Math best-seller list, ease-of-entry score 48.5/100.
Category metrics
Score
48.5
Median reviews
499
Weak share (top 20)
35%
Median price
$9.70
Median star rating
4.4
Books scanned
50
Worth writing in?
The Technology list shows real reader demand with room left for newcomers: the median book carries 499 reviews, yet 35% of the top 20 still sit under 100 reviews. 1 top-15 books hold fewer than 100 reviews at $0.99–4.99 — classic self-publishing breakout books. Ease-of-entry score 48.5/100.
Breakout books — top 15, under 100 reviews, $0.99–4.99
Best-seller list on Amazon| # | Title | Star | Reviews | Price |
|---|---|---|---|---|
| 4 | Crap: A History of Cheap Stuff in America | 4.5 | 33 | $1.99 |
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 |
|---|---|---|
| scientific american | 3 | 113 |
| artificial intelligence | 4 | 88 |
| october 2026 | 2 | 76 |
| popular mechanics | 2 | 58 |
| silicon valley | 2 | 53 |
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More Science & Math categories
3 subcategories under this category
| Subcategory | Score | Median reviews |
|---|---|---|
| █████ | 70.5 | 6 |
| █████ | 57.0 | 1 |
| █████ | 48.5 | 499 |
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.
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Research snapshot scanned on Oct 19, 2026. Refreshed periodically — not live tracking.