Test Preparation — Kindle Category Opportunity
Competition snapshot for the Education & Teaching best-seller list, ease-of-entry score 52.0/100.
Category metrics
Score
52.0
Median reviews
144.5
Weak share (top 20)
40%
Median price
$9.99
Median star rating
4.7
Books scanned
50
Worth writing in?
The Test Preparation list shows real reader demand with room left for newcomers: the median book carries 144.5 reviews, yet 40% of the top 20 still sit under 100 reviews. 2 top-15 books hold fewer than 100 reviews at $0.99–4.99 — classic self-publishing breakout books. Ease-of-entry score 52.0/100.
Breakout books — top 15, under 100 reviews, $0.99–4.99
Best-seller list on Amazon| # | Title | Star | Reviews | Price |
|---|---|---|---|---|
| 14 | LSAT Prep 2026-2027: Study Guide for the Current LSAT Format with Full-Length Practice Tests, Step-by-Step Explanations, and a 6-Week Study Plan | — | 0 | $0.99 |
| 11 | GED STUDY GUIDE 2026-2027 ALL SUBJECTS: Complete study guide for Math, Language Arts, Science & Social Studies with Practice Questions, Detailed Answer Explanations and Full-Length Practice Tests | 5.0 | 9 | $0.99 |
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 |
|---|---|---|
| practice tests | 10 | 253 |
| study guide | 10 | 245 |
| 2026 2027 | 9 | 162 |
| full length practice | 7 | 144 |
| full length practice tests | 6 | 140 |
| exam prep | 7 | 87 |
| practice tests comprehensive review | 2 | 81 |
| prep 2026 2027 | 5 | 79 |
| practice questions | 3 | 73 |
| class license manual | 2 | 68 |
| ham radio prep | 2 | 68 |
| step by step | 3 | 67 |
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More Education & Teaching categories
8 subcategories under this category
| Subcategory | Score | Median reviews |
|---|---|---|
| █████ | 72.0 | 9.5 |
| █████ | 71.5 | 9 |
| █████ | 70.5 | 35 |
| █████ | 69.0 | 40.5 |
| █████ | 69.0 | 19.5 |
| █████ | 67.0 | 21.5 |
| █████ | 63.5 | 49 |
| █████ | 53.5 | 12.5 |
Subcategory names are visible after sign-in — a free account unlocks every subcategory score.
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Research snapshot scanned on Oct 19, 2026. Refreshed periodically — not live tracking.