| Category name | Best seller rank | 50th book's rank | Median sales($) | Median price ($) | Volatility (%) | New releases (%) | Self pub.(%) | KDP Select (%) | Competition |
|---|---|---|---|---|---|---|---|---|---|
| Kindle eBooks > Computers & Technology > Programming > Languages & Tools > SQL | 55,724 | 515,595 | $279 | |
100% | 20% | 55% | 40% | ~ 658 |
| Kindle eBooks > Computers & Technology > Networking & Communications > Client-Server Systems | 169,106 | 956,949 | $0 | |
100% | 10% | 45% | 27% | ~ 812 |
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