| Category name | Best seller rank | 50th book's rank | Median sales($) | Median price ($) | Volatility (%) | New releases (%) | Self pub.(%) | KDP Select (%) | Competition |
|---|---|---|---|---|---|---|---|---|---|
| Books > Test Preparation | 50 | 2,568 | $38,766 | |
95% | 0% | 35% | 0% | ~ 100,000 |
| Books > Education & Teaching > Higher & Continuing Education > Test Preparation | 268 | 3,414 | $50,164 | |
95% | 5% | 40% | 0% | ~ 50,000 |
| Books > Test Preparation > College & High School | 335 | 4,145 | $32,524 | |
80% | 0% | 20% | 0% | ~ 10,000 |
| Books > Education & Teaching > Higher & Continuing Education > Test Preparation > Advanced Placement | 455 | 6,883 | $20,911 | |
90% | 0% | 25% | 0% | ~ 2,000 |
| Books > Education & Teaching > Higher & Continuing Education > Test Preparation > College Entrance | 632 | 13,337 | $29,333 | |
80% | 5% | 20% | 0% | ~ 4,000 |
| Books > Test Preparation > Professional | 451 | 13,389 | $19,320 | |
80% | 5% | 40% | 0% | ~ 30,000 |
| Books > Textbooks > Test Prep & Study Guides | 2,361 | 19,595 | $8,460 | |
95% | 20% | 15% | 0% | ~ 80,000 |
| Books > Test Preparation > Test Flash Cards | 66 | 26,052 | $5,452 | |
70% | 0% | 35% | 0% | ~ 3,000 |
| Books > Medical Books > Medicine > Test Preparation & Review | 1,632 | 36,091 | $8,263 | |
95% | 5% | 45% | 0% | ~ 9,000 |
| Books > Test Preparation > Professional > Professional | 3,183 | 37,323 | $6,859 | |
90% | 10% | 25% | 0% | ~ 10,000 |
| Books > Test Preparation > Graduate School | 1,297 | 42,124 | $9,249 | |
85% | 10% | 25% | 7% | ~ 3,000 |
| Books > Test Preparation > Study & Test-Taking Skills | 2,382 | 62,799 | $4,916 | |
100% | 0% | 55% | 0% | ~ 3,000 |
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