| Category name | Best seller rank | 50th book's rank | Median sales($) | Median price ($) | Volatility (%) | New releases (%) | Self pub.(%) | KDP Select (%) | Competition |
|---|---|---|---|---|---|---|---|---|---|
| Kindle eBooks > Computing > Databases | 607 | 146,816 | £251 | |
95% | 5% | 45% | 37% | ~ 7,000 |
| Kindle eBooks > Computing > Databases > Data Mining | 1,826 | 304,326 | £223 | |
95% | 0% | 40% | 43% | ~ 2,000 |
| Kindle eBooks > Computing > Databases > Data Warehousing | 23,550 | 426,274 | £427 | |
85% | 10% | 30% | 37% | ~ 520 |
| Kindle eBooks > Computing > Databases > Database Management Systems | 36,998 | 428,408 | £180 | |
95% | 5% | 65% | 63% | ~ 443 |
| Kindle eBooks > Computing > Databases > SQL | 73,444 | 651,603 | £279 | |
100% | 0% | 55% | 23% | ~ 656 |
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