| Category name | Best seller rank | 50th book's rank | Median sales($) | Median price ($) | Volatility (%) | New releases (%) | Self pub.(%) | KDP Select (%) | Competition |
|---|---|---|---|---|---|---|---|---|---|
| Books > Science & Math > Physics > Mechanics | 24,991 | 237,179 | $414 | |
100% | 0% | 20% | 7% | ~ 10,000 |
| Books > Science & Math > Physics > Waves & Wave Mechanics | 8,206 | 259,944 | $456 | |
95% | 0% | 30% | 13% | ~ 2,000 |
| Books > Textbooks > Science & Mathematics > Mechanics | 16,812 | 1,514,463 | $1,808 | |
95% | 0% | 25% | 0% | ~ 10,000 |
| Books > Engineering & Transportation > Engineering > Materials & Material Science > Fracture Mechanics | 25,650 | 2,082,690 | $0 | |
95% | 5% | 30% | 17% | ~ 1,000 |
| Books > Science & Math > Physics > Gas Mechanics | 119,025 | 2,444,610 | $0 | |
100% | 10% | 20% | 0% | ~ 462 |
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