Mathematics — Kindle Category Opportunity
Competition snapshot for the Science & Math best-seller list, ease-of-entry score 57.0/100.
Category metrics
Score
57.0
Median reviews
183
Weak share (top 20)
50%
Median price
$4.99
Median star rating
4.5
Books scanned
50
Worth writing in?
Practice-problem workbooks are structurally ideal for a small publisher: problems can be generated and machine-verified, worked answer keys add genuine value, and buyers — teachers, tutors, self-studiers — repurchase by topic and level. The applied subcategory carries the deepest demand.
Editor's note.
Breakout books — top 15, under 100 reviews, $0.99–4.99
Best-seller list on Amazon| # | Title | Star | Reviews | Price |
|---|---|---|---|---|
| 1 | Systems Thinking for Work: How Leaders, Managers, and Professionals Solve Complex Problems, Avoid Costly Mistakes, and Make Smarter Decisions. (The Systems Thinker Series Book 8) | — | 0 | $0.99 |
| 8 | Super Structures: The Science of Bridges, Buildings, Dams, and Other Feats of Engineering | 4.3 | 18 | $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 | 135 |
| logic grid | 3 | 110 |
| puzzle book for adults | 2 | 76 |
| logic grid puzzles | 2 | 75 |
| readable guide | 2 | 66 |
| practice workbook | 2 | 28 |
| modern world | 2 | 22 |
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More Science & Math categories
16 subcategories under this category
| Subcategory | Score | Median reviews |
|---|---|---|
| █████ | 85.5 | 2 |
| █████ | 77.0 | 3.5 |
| █████ | 72.5 | 8.5 |
| █████ | 66.0 | 7.5 |
| █████ | 61.5 | 7.5 |
| █████ | 60.0 | 47 |
| █████ | 59.5 | 17.5 |
| █████ | 59.0 | 35 |
| █████ | 54.5 | 27.5 |
| █████ | 53.5 | 34.5 |
| █████ | 53.5 | 39 |
| █████ | 52.0 | 514 |
| █████ | 52.0 | 301 |
| █████ | 48.5 | 72 |
| █████ | 46.0 | 133 |
| █████ | 46.0 | 140 |
Subcategory names are visible after sign-in — a free account unlocks every subcategory score.
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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.